Rex

"I used to believe that being a good soldier meant doing everything they told you. That's how they engineered us. But we're not droids. We're not programmed. You have to learn to make your own decisions."

- Rex

CT-7567, nicknamed "Rex," was a veteran clone trooper captain who oversaw Torrent Company of the Grand Army of the Republic's famed 501st Legion during the Clone Wars. Rex participated in many battles over the course of the war, and was fond of his dual DC-17 blaster pistols, which he used extensively in battle. As the captain of the 501st, Rex served as second-in-command to Jedi General Anakin Skywalker, whose bravery and unorthodoxy in battle he came to share. He was close friends with Marshal Commander Cody, with their relationship mirroring that of their respective Jedi Generals, Skywalker and Obi-Wan Kenobi. The four of them often received joint assignments to coordinate front-line campaigns against the Confederacy of Independent Systems.

At the Battle of Christophsis, Rex became a mentor to Skywalker's newly assigned Padawan, Ahsoka Tano, with whom he forged a strong bond. While on a listening post inspection tour with Cody, Rex rallied a small team of rookie soldiers to retake Rishi Station, which they thereafter destroyed to thwart Confederate General Grievous's planned invasion of Kamino. He took part in countless campaigns in the galactic theater of war, from the containment of the Blue Shadow Virus on Naboo and the liberation of Ryloth to other hard-won victories like the Battle of Malastare, the Second Battle of Geonosis, and the Battle of Kamino.

Throughout his career, Rex proved to be an effective leader who truly cared for the men under his command, even as he began to doubt his own future&mdash;and those of his clone brethren&mdash;in the Republic. The Battle of Saleucami saw him meet the clone deserter Cut Lawquane, whom he came to respect despite their striking differences. His leadership was put to the ultimate test at the Battle of Umbara, when he was forced to unite the 501st Legion under an interim Jedi General, the obstinate and aggressive Pong Krell. Rex did not see eye-to-eye with Krell and found himself having to balance his troops' well-being with Krell's high-casualty plans. When Krell manipulated the 501st into a fatal confrontation with their comrades from the 212th Attack Battalion, Rex realized their general was a traitor to the Republic, and he risked charges of treason to lead his men in arresting Krell. The ordeal refined his hard-line obedience to orders, as he also learned the value of making his own decisions as a soldier.

Rex aided Skywalker, Tano, and Kenobi in rescuing Togruta colonists from the Zygerrian Slave Empire and later offered his soldier's expertise to help the Jedi train local insurgents on Onderon to emancipate their world. In a stark turn of events, he and Skywalker apprehended Tano on Coruscant after she was framed for a bombing of the Jedi Temple, an incident that culminated in her departure from the Jedi Order. Following the malfunction of a clone during the Battle of Ringo Vinda, Rex and Skywalker gave pursuit of a longtime comrade, ARC trooper Fives, who had gone rogue after unearthing an anti-Jedi directive that had been bred into all of the Republic's clone troopers. Before Fives could prove his findings to Rex and Skywalker, the Coruscant Guard gunned him down for resisting arrest.

Following Tano's departure from the Jedi Order, Rex served alongside her during the Siege of Mandalore. At some point during the Clone Wars, Rex removed his inhibitor chip and did not comply with Order 66 when it was issued. Fifteen years after the end of the Clone Wars, Rex was still alive and was living in a modified AT-TE on Seelos with Commander Gregor and Commander Wolffe. Eventually, he fought with Ahsoka Tano again during the rebellion's campaign against the oppressive reign of the Galactic Empire.

Early life
CT-7567, later known as "Rex," was a clone of the bounty hunter Jango Fett created and trained on Kamino. He was eventually made a captain in the Grand Army of the Republic.

The Clone Wars
Rex served in the Grand Army of the Republic to protect the Republic's citizens as part of his loyalty to the Republic. Rex was then assigned to Jedi General Anakin Skywalker as his second in command. He was then given command of Torrent Company of the 501st Legion. Rex was eager to follow orders but became less tightly wound in time. He also worked alongside Commander Cody at battles such as Tibrin.

Battle of Christophsis
Some time after the Battle of Geonosis, Rex accompanied Skywalker, Kenobi, Cody and the rest of the Republic forces in their effort to liberate Christophsis from the Confederate forces under General Whorm Loathsom and Dooku's assassin, Asajj Ventress. The Captain took part in setting up an ambush on the approaching Separatist forces, but watched on as Kenobi and Cody were ambushed themselves. Skywalker rushed to his master's aid, with Rex and his men alongside. Fleeing to the rooftop, they held off the battle droids until evac arrived in the form of a gunship, with clone trooper Gus removing the commanding tactical droid's head before departing. Rex then assisted Cody in performing a robolobotomy on the droid's head, discovering that it contained all of their intelligence. Surmising that this meant there was a spy in their midst, Generals Skywalker and Kenobi departed to investigate the Confederate headquarters, hoping this would reveal the spy's identity. Rex and Cody were instructed to conduct their own search at the Republic base.

As they were leaving the command center, Cody noticed that someone had left their comlink on; their entire conversation had just been broadcast to the Separatist spy. Rex spotted someone in the corridor, and he and Cody gave chase. However, they lost him in the busy mess hall. The spy, they now realized, was a clone. Unable to reach the Jedi as a result of blocked communications, Rex had R2-D2 analyze the communication history to see if anyone had sent out any unauthorized transmissions. He noticed irregular wavelengths that were too low and infrequent to be detected normally, wavelengths that were coming from Sergeant Slick's barracks. They proceeded to question Slick's men, all of whom had an alibi except Chopper, who lies about collecting battle droid fingers. However, Slick slips when he reveals that he knew the Jedi were gone. Slick escapes, and manages to evade Rex and Cody while also blowing up the nearby weapons depot as well as many of the LAAT gunships and AT-TEs.

Following a lead from Gus and Chopper, Rex and Cody venture back to the command center. There, they notice boot prints that trail up towards the vents. Without a word between the two of them, Rex and Cody devise a trap; Rex pretends to leave the room, while Cody stands with his back to Slick's hiding spot as well as his gun. Slick slides out of the vents and points the gun at the back of Cody's head, but is shocked to learn that the gun is empty; Cody took the clip out beforehand. After a short fist fight, Rex and Cody are able to subdue Slick, just as the Jedi return from their fruitless trip to the Separatist headquarters. Skywalker verbally rebukes Slick for placing his brothers at risk, and Slick replies with a venomous attack on the Jedi's enslavement of his brothers, the clones. Despite Slick scorching the entire weapons depot, Rex and Cody note that they were able to save the heavy cannons.

As Loathsom's droid army moved in on their positions, Rex and his men accompanied Skywalker as he took on the tri-droids. Soon after, Rex met Skywalker's new apprentice, Ahsoka Tano, laughing as she calls Skywalker "Skyguy," which for laughing he was told to show her the ropes as a commanding officer, offering her advice and valuable leadership experience. He also stated that while she may outrank him, it's experience that outranks everything. Before long, Rex spotted the deflector shield being used by the incoming Confederate forces, rendering their cannons useless.

After conferring with Kenobi, Cody and Rex, Skywalker and Tano left to destroy the deflector shield, while Rex assisted Kenobi in holding back the droids before they were able to destroy the heavy cannons. As Kenobi lead a charge against the droids, Rex and his men drew the droids into the buildings, making the fight more manageable for the clones. Despite this, most of Rex's unit was wiped out, and he was soon ordered to pull back his forces in order to protect the cannons. As Kenobi delayed Loathsom with a drawn-out surrender, Rex noticed the shield drop just in time and ordered the cannons to finish off the tanks, ending the battle.

Battle of Teth
Rex, alongside Skywalker, Tano, and the rest of Torrent Company, then went to Teth to rescue Jabba the Hutt's son, Rotta. They used their ascension cables to climb the cliffs to the monastery under fire from two droid battalions. Rex and his men secured the monastery. After Skywalker and Tano found Jabba's son, Vulture droids attacked as two Separatist landing craft landed, deploying more battle droids under the command of Ventress. Rex and his men retreated into the monastery.

Rex and his men stayed behind to keep the battle droids busy. After Ventress cut the door's lock, Rex and his men fought the droids, but the droids subdued his men. Rex picked up his pistol and tried to shoot Ventress, who disarmed and Force-strangled him, demanding the location of Skywalker. Rex refused, but Ventress used a mind trick to make him contact Skywalker. However, Rex alerted Skywalker by using his name that Ventress was coming.

When Skywalker contacted Rex, a battle droid came over, and Rex punched it and took its weapon. Rex and his troops then fought the droids guarding them. As they were surrounded, help arrived from Kenobi and Cody. After destroying a spider droid with a detonator, Rex told Skywalker they could take care themselves and that the mission came first. Rex then went with Kenobi, Yoda, and Cody to pick up Skywalker and his apprentice from Jabba's palace on Tatooine.

Skirmish on the Rishi moon
Rex then went with Cody on a inspection tour on the Nu-class transport, Obex. After inspecting the tracking station at Pastil, Rex and Cody then went to the Rishi moon station. En route, Rex contacted station. Rex noticed something odd about the trooper's reluctance to their inspection. After landing, Rex and Cody were greeted by a trooper who said that the base was fine and asked them to leave. Rex then demanded to be taken to the sergeant command, noticing the trooper saying "roger, roger." Rex and Cody then saw a droid attack flare, and he drew his pistol and shot the trooper. Rex then saw that it was a BX-series droid commando. They then came under attack by more commando droids that cut them off from the Obex. Rex and Cody then jumped off the platform as the commando droids threw detonators at them. They then used their ascension cables to climb down.

They then met the surviving troopers, Fives, Hevy, and Echo, who at first they ordered to remove their helmets to prove they weren't droids. After removing their helmets, they came under attack by a Rishi eel, but Rex was able to shoot in the eye. Rex then marked Echo with the eel's blood and told them to follow him and Cody. Rex then pretended to be a malfunctioning commando droid by using a head from one and saying "roger, roger." After the droids opened the door, Rex, Cody and the rest of the clones then stormed the command center, taking out the commando droids. They then spotted a Confederate fleet approaching, but were unable to contact the Republic.

When a landing craft came down, Rex said they would blow up the station so that the Republic fleet would arrive to investigate. Rex then rigged the gas detonators as Cody and others held up the battle droids. However, the remote detonator was not working. Rex and the others then left while Hevy fixed the detonator. However, Hevy refused to leave intending to set the gas off manually. Rex and the others then tried to go back for him but Hevy blew up the station along with himself. Rex and the others were rescued by a gunship. After Echo and Fives received medals for their bravery, Rex accepted them into the 501st Legion.

Battle at Bothawui & Skytop Station
After the fall of Falleen, Rex, Skywalker, Tano and their fleet were sent to protect Bothawui. Rex and the fleet's AT-TEs were then deployed on the asteroids surrounding Bothawui. As Grievous moved in to attack Skywalker's fleet, Rex and the AT-TE opened fire on the rear of Grievous's fleet. Rex then saved Skywalker when his fighter was damaged. Rex then stayed with Ahsoka as Skywalker searched for Grievous's spy station. Rex and Ahsoka then detected Skywalker's tracking signal. The two of them then took the Twilight and rescued Skywalker from Grievous's forces.

Rex then assisted Skywalker in his search for the listening post. After receiving a message from R2, Rex, Denal, and his squad then accompanied Skywalker in destroying the station in the Ruusan system. Rex also carried R3-S6 down to the station. Rex, Ahsoka, R3 and the rest squad were then sent to destroy the station's reactors while Skywalker searched for R2. However, R3 slowed them down leading to a confrontation between super battle droids. They were able to subdue them the droids. However, Rex, Ahsoka and the squad were then confronted by General Grievous. Rex and his squad tried to shoot but all were killed except for Rex and Denal. As Rex was about to be killed, he was saved by Ahsoka. Rex and Denal were then ordered by Ahsoka to complete their mission without her. Rex and Denal were then able to rig the reactors and rendezvous with Skywalker and the Twilight in the landing bay. However, Rex and Skywalker then realized that R3 was a spy when he summoned super battle droids and vulture droids to attack them. Rex then destroyed the reactors and they were then joined by Ahsoka and made their escaped with Skywalker rescuing R2.

Battle above Quell
Later during the conflict, Rex joined Skywalker, Tano, Admiral Wullf Yularen, and several other clone troopers on a mission to the planet Quell where Jedi General Aayla Secura and her clone commander, Bly, were fighting against a Separatist opposition. With Secura's cruiser damaged, the Republic forces were in a hurry. After breaking through a line of rocket super battle droids, they landed on Secura's ship, where Skywalker was injured in an explosion on the exploding ship. With fellow troopers Cameron, Flash, and Lucky, Rex, Tano, Secura, Bly, and Skywalker escaped on a transport vessel. However, they were then hit and entered hyperspace. Their ship then crash-landed on the planet Maridun.

Rex then stayed behind with Skywalker while Secura, Bly, Ahsoka, and the other troopers went to look for help. Rex then fought against the Mastiff phalones alongside Skywalker until Bly, Ahsoka, and the Lurmen healer Wag Too came to his aid. Rex and his fellow clones and Jedi quickly discovered that Maridun was home to a Lurmen village.

Defense of Maridun
Rex then watched for any spacecraft hoping for rescue. Rex soon spotted a Confederate landing ship coming toward the village. He informed Bly of this and then made their escape from the village before the battle droids arrived. Rex and the others then planned to steal a shuttle, but were then spotted by a recon droid. They then pursued it until Secura destroyed it. Rex and the others then watched as General Lok Durd prepared to test his weapon. Rex went with Bly to get a closer look at the weapon. Rex and Bly then ran to avoid the weapon's shockwave using their grapnel lines.

After Durd left, Rex worked with Bly and Skywalker to infiltrate Durd's base, where they were able to steal a shuttle and shield generators. Rex and the group then returned to the village, where Skywalker, Bly and him built a wall to withstand, much to Tee Watt Kaa's disapproval. Rex and Bly then activated the shield as the Defoliator Tank fired its weapon. Rex and the others then stood their ground until the droids breached the shields and destroyed it. Luckily, Rex, Bly and the others then had help from the Lurmen and were able to subdue and capture Durd and Pune Zignat. As Rex was taking Durd and Zignat, Republic cruisers then arrived to rescue them.

Battle of Orto Plutonia
Rex then accompanied Generals Kenobi, Skywalker, Pantoran Senator Riyo Chuchi and Chairman Chi Cho to Orto Plutonia. There, they investigated Glid Station to ascertain what happened to the troopers. Rex and the Jedi then went to Confederate outpost, where they saw a hologram of a creature attack the battle droids. Rex then returned to the station, where he and his troops waited for the Jedi's return. Rex and his troops then went with the Jedi, Chairman Cho, and Senator Chuchi to speak with the Talz Chief, Thi-Sen at the Confederate base. After the meeting was over, Rex was then charged with protecting the Chairman when he decided to attack the Talz. Rex, his troopers, Cho, and his guards were then surrounded by the Talz. When Cho was mortally wounded, Rex and his men retreated, carrying the Chairman with him. Rex then formed a defense line near a cliff and held out until Skywalker, Kenobi, Chuchi and the rest of the troops arrived.

Raid on Vindi's Lab
Rex was then sent to Naboo to assist Skywalker and Kenobi to stop Confederate scientist, Dr. Nuvo Vindi, from deploying bombs laden with the Blue Shadow Virus. Rex then fought alongside Commander Tano in fighting their way through Vindi's lab. They were able to stop Vindi's droid, LEP-86C8, from unleashing the virus.

However, LEP-86C8 was able to steal a vial and trigger one of the bombs, contaminating the labs. Though Rex and his troopers were able to seal the lab, they were infected with the virus. Alongside Senator Padmé Amidala and Junior Representative Jar Jar Binks, they were able to destroy all the droids but were also infected with the Blue Shadow Virus Fortunately, Skywalker and Kenobi were able to administer a cure to them and save them.

First Battle of Felucia
Rex, alongside Cody, Skywalker, Tano, and Kenobi was then sent to Felucia. However, their forces were then surrounded. Luckily, they were then rescued by General Koon's forces.

Battle of Devaron
Rex then went with Skywalker and Tano to Devaron to stop Bane from taking the Kyber memory crystal from Master Bolla Ropal. Rex then gathered three brigades to board Bane's ship. Rex then approved of Skywalker's idea of using the AT-TEs to board Bane's ship. Rex, Skywalker, Tano and their troops were successful in boarding the ship, though they did not save Master Ropal in time. Rex and the others then found Bane on the gun deck. Rex and his then fought the battle droids while Skywalker and Tano pursued Bane. Rex and his men then secured a shuttle and waited for Skywalker and Tano to return. When they returned, Rex watched as Denal shot Bane.

After returning to the Resolute, one of the Rex's men then spotted blood. Rex then told Skywalker that it was not of his men's blood. Rex and Skywalker then realized that Denal was actually Bane in disguise, who then made his escape.

Second Battle of Geonosis
Rex then fought with Skywalker, Tano, and his troops when the Republic returned to Geonosis. After Skywalker's gunship were shot down, Rex and the others continued towards Kenobi's position on foot. Rex then assisted Skywalker and Tano in taking out a droid fortress blocking their path. After the fortress was destroyed, Rex, Skywalker, Mundi, Tano and the rest of their forces were able to rendezvous with Kenobi and Cody.

Rex then fought alongside, Skywalker, Unduli, Gree and their troops to distract Poggle's forces while Tano and Offee infiltrated the droid foundry. At first, they were able to drive back the battle-droids. However, Rex, Gree and their troops were forced to fall back when Poggle sent in Super tanks to finish them off. After the foundry was destroyed, Rex brought in their tanks and gunships to search for Tano and Offee. Rex then saw Tano and Offee leave to recuperate.

Rex then accompanied Skywalker, Kenobi, Undili and Mundi to deliver Poggle to Coruscant. Rex then stayed alert when Tano and Offee failed to check in time. Rex was then able to contact Tano and informed Skywalker of this.

Battle of Saleucami
Rex then accompanied Skywalker and Master Gallia to the Saleucami system to rescue Master Eeth Koth from General Grievous. Despite rescuing Master Koth, Grievous escaped to the surface of Saleucami. Rex then went General Kenobi and Cody to track him down.

Rex and several of his troopers investigated the remains of Grievous' landing ship. Rex then took Jesse, Hardcase, and Kix through the wet lands to find Grievous. However, Rex was then shot by commando droid sniper. He survived, but had to be left behind at a farm to recover. Rex then discovered that the owner of the farm was clone deserter named Cut Lawquane. At first, Rex was disgusted by Lawquane's lack of commitment to the Republic. Despite this, Rex accepted his children's invitation to dinner. Rex then talked about how he would stay in the Army no matter. Rex was then told how Cut left the army after his team had been shot down, killed off, and then he ran. Rex and Cut's family came under attack by commando droids. Together, Rex and Cut were able to destroy all the droids, with Cut rescuing Rex from one. The following day, Rex decided not to turn him, seeing him as not a coward. He then rejoined Kenobi's forces.

Skirmish on the Coronet
Following Kenobi's investigation on Mandalore, Rex, Cody, Skywalker and several troopers were requested to protect the Duchess Satine Kryze and her entourage from the Death Watch and the Separatists aboard the Coronet.

Rex, Cody and their troops were then briefed on the importance of protecting the Duchess. They then stayed in the cargo bay. Rex then saw that R2 was spooked by something and that 2 of his troopers were missing. Rex, alongside Skywalker, then found an open container. They then continued the search until Skywalker was attacked by a Assassin probe. Rex and Cody were then able to take it out. However, they then came under attack by Probe killers. After defeating them, Rex and Cody continue their search taking out the last probe killer. Rex was then attacked by the last assassin probe but was able to hold off its claws before Skywalker took it out. Rex then fought off super battle droids boarding the Coronet alongside Cody, their troopers, and the Mandalorian royal guards.

Battle of Kamino
Rex, Cody and their troopers then returned to his homeworld of Kamino when a message between Grievous and Ventress was discovered. Rex and Cody then joined Fives, Echo, 99 and several young cadets in the barracks. Together, they fought off the battle droids, but 99 was then killed. Following the battle, Rex promoted Echo and Fives to ARC trooper.

Battle of Lola Sayu
When Master Piell was captured, Rex alongside Cody, Fives, Echo, Kenobi and Skywalker attended a briefing held by Plo Koon for a mission to rescue Piell from the Citadel on Lola Sayu, where he was imprisoned by the Separatists. In order to get on the planet undetected, Skywalker had the entire rescue team, including Rex, carbon-frozen. The frozen team was smuggled by R2-D2 and some reprogrammed battle droids in a stolen Separatist shuttle. This tactic successfully fooled the life-form scanners of the blockade around the planet and its crew and the droids landed the shuttle in a cave close to the Citadel prison. After landing, Rex and the others were unfrozen, only to discover that Ahsoka Tano had secretly joined the team, despite having received orders not to do so. Since there was no other option, Ahsoka came along and the team began the mission.

In order to get in the facility the team had to free climb a wall covered with electromines. This went well until a clone trooper stepped on a loose rock and fell straight into a mine, alerting the prison crew of the team's presence. On the way to Piell's cell the team had to evade several booby traps, one killing another clone trooper. The team made it to Piell's cell and destroyed the droids that were guarding Piell, with Rex taking care of the interrogator droid. On the way to rescue Piell's the group was located by the Citadel's warden, Osi Sobeck, who activated a large magnet in the ceiling of the hall that pulled all the team's weapons away, as well as Skywalker, due to his cybernetic arm. The team was surrounded by droids.

Skywalker, being attached to the magnet, reclaimed his lightsaber and destroyed the magnet, allowing the team to reclaim their weapons and destroy the droids. Rex shot a surveillance camera, much to Sobeck's frustration, before moving along. After retrieving Piell's officers the group decided to split up in two groups while escaping the facility, as both Piell and his captain, Tarkin, knew half of vital hyperspace coordinates, called Nexus Route. By splitting them up during the escape it would be more difficult for the Separatist to get the full information. Rex joined the group consisting of Skywalker, Tano, Tarkin, Echo, Fives and two rescued clones. While Kenobi and the other group wreaked havoc on the upper levels, Rex and his group escaped the tower into a series of tunnels on the lower levels.

Rex and the others then made their way through tunnels fighting off the super battle droids and commando droids. He also defended Ahsoka when Tarkin questioned her experience. They were then able to meet up with Kenobi's and Piell's team at the airfield. However, their shuttle was destroyed and ARC trooper Echo was believed to have been killed.

Rex and the others then made their to a rendezvous point as they were pursued by STAPs and Anoobas. During their trek, Piell was killed by one of the anoobas and Rex and the others gave him a brief funeral. They then reached the rendezvous point, where they fought against Commander Sobeck and his droids until Koon arrived. Rex and the others were then taken back to Coruscant.

Return to Felucia
Rex then went with Skywalker, Ahsoka, Koon, Wolffe, and their men to take out a resupplied Separatist outpost. With the aid of Felucian scouts, Rex and Skywalker assaulted the outpost while Tano and Koon attacked the outpost from the sides. However, Skywalker noticed that Ahsoka had gone missing. Rex and his men then searched the outpost and the surrounding area for her to no avail.

Rex then oversaw the deployment of General Fisto's, Ahsoka's, and Commander Monnk's SCUBA troopers at Mon Cala to assist Prince Lee-Char.

Battle of Umbara
Rex, along with Skywalker, Fives and the rest of the 501st were then sent to Umbara to help Masters Tiin, Krell and Kenobi to take it's capital. After the initially landing and fighting with the Umbaran militia, Rex and the 501st were then place under the command of Krell when the Chancellor requested Skywalker to return to Coruscant. Rex and his men were then pushed hard by Krell, who pushed for full frontal assaults on the capital. During the first attack on the road to the capital, Rex was force to retreat, much Krell's disappointment.

Rex, Krell, and the 501st were then sent to capture an airbase that was resupplying the capital. Rex was then ordered to go through a gorge that would leave them exposed. Rex tried to reason with Krell to no avail. Despite the objections of Fives and the rest of the 501st, Rex convinced his men to carry out Krell's orders. As they made their way through the gorge, they were attacked by the Umbarans' crawler tanks. Fortunately, Rex and his troops were able to destroy the crawler tanks. They were then confronted by the Umbarans' MHCs, which had heavy armor impervious to their rocket launchers. Rex then sent Fives and Hardcase to infiltrate their base and use their own starfighters on the MHCs. Despite Krell's orders to push the attack, Rex and his men were able to hold them off until Fives and Hardcase destroyed the MHCS. The base was then taken and secured despite the heavy losses.

When Kenobi contacted them about the capital's long range missiles being supplied by a Separatist supply ship, Rex proposed that they should attack the ship to cut off the supplies. However, Krell proposed to attack the capital despite the missiles, much to Rex's and Kenobi's surprise. Rex was then ordered to prepare the men for the attack, despite the heavy casualties. Rex at first complied, but was then told of idea by Fives to use the Starfighter codes to infiltrate and destroy the supply ship. However, Krell objected to it. Following a mishap in a hangar, Rex then gave Fives, Jesse, and Hardcase permission to carry the mission. However, he told them that if they were caught, he would not be able to protect them. Rex then watched as they took off on their mission and stopped Dogma and Tup from informing Krell. Krell then confronted Rex, who told him that he authorized a reconnaissance mission to make his strategy more efficient. Rex the saw the supply ships explosion. Rex, Fives, and Jesse were then brought before Krell, where he reprimanded them. Despite Rex's objections, Krell had Fives and Jesse taken to the brig for insubordination.

Rex then spoke with Krell to convince him to spare Fives and Jess, telling him that the men are with him despite his reckless tactics. Despite this, Krell ordered Rex and his men to execute them, but they refused to do so. Rex and Krell were then contacted by a trooper who informed them that they were ambushed by the Umbarans disguised as clones. Rex was then sent to attack the Umbarans. Rex and his men, armed with mortars, then went into the jungle where they were attacked by the troopers. However, Rex then examined one the troopers and discovered they were clones. Rex then ran in front of both his men and the troopers, revealing the deception. Rex then spoke with the 212th Battalion platoon leader, Waxer, who revealed that it was Krell who ordered the attack. Rex then gathered his men and the remainder of Waxer's platoon together. Then, Rex told them that they would arrest Krell for treason. Rex and the men then confronted Krell, who was surprised that Rex figured it out. Krell, believing him to be committing mutiny against, refused to be arrested. Krell then pushed Rex and his men and made his escape into the jungle. Rex and his men then went into the jungle, where Krell taunted him. Fortunately, Krell was then subdued and stunned by Tupp. Rex and his men then placed Krell in the brig. During his questioning, Rex learned that Krell was trying to undermine the Republic so that Dooku or his master would make him his new apprentice and rule Umbara. When news came that Kenobi and 212th had taken the capital, Rex and the others decided to execute Krell. At first, Rex hesitated but Krell was then killed by Dogma.

Battle of Kiros and Kadavo
Ten rotations after Master Yoda last communication with Kiros' governor, Roshti, Rex, along with Skywalker, Kenobi, Ahsoka, and their men were sent to free Kiros from the Separatist occupation forces. Rex then rode with Kenobi as his gunner on his BARC speeder. Rex then finished off the last of the AATs with his rocket launcher as they approached the Separatist headquarter inside the governor's tower.

Following the capture of Commander D'Nar, Rex went with Skywalker, Kenobi, and Ahsoka to Zygerria using the Tecora. Rex, disguised as a Zygerrian guard, went with Kenobi to find the colonists. Rex was then able to spot Governor Roshti. Rex then attempted to escape with Kenobi and Roshti, but they were then captured. Rex then went to slave auction still posing as a guard. When Skywalker was able to whip Kenobi, Rex saw his signal and attacked the guards. However, he and the others were then captured. Rex, Kenobi, and Roshti were then taken to Kadavo, to its slave processing facility.

There Rex worked in the facilities' mines alongside Kenobi and the Togrutas as a slave. He and Kenobi were then brought before "Keeper" Agruss, who was ordered by Count Dooku to execute them. However, Rex and Kenobi were able to free themselves when Skywalker, Tano, and Plo Koon came to free the slaves. Rex then killed Agruss. Rex and Kenobi then made their way to a gunship and left the facility before it was destroyed.

Following the battle, Rex was assigned by Skywalker to guard the Supreme Chancellor against bounty hunter Moralo Eval's kidnapping plot. He covered for Skywalker and Tano when they went after Eval, Bane and Rako Hardeen.

Training Onderonian Rebels
Rex then went with Kenobi, Skywalker, and Tano to Onderon to help train its rebels in fighting the Confederacy's occupation forces. Rex taught them how to use weapons such as the droid poppers against the battle droids. Rex then left with Skywalker and Kenobi to report on the Rebels progress against the Confederate forces in Iziz.

Tracking Ahsoka
Rex was with Skywalker and Tano when they defended Cato Neimoidia from the Confederacy. Rex then returned to Coruscant, where he worked with Skywalker to prove Tano's innocence in the Jedi Temple bombing and Letta Turmond's murder. He then went with him to the military base, where Commander Fox told him that Tano killed several clones. Rex, Skywalker, and Fox then searched for her. Rex then followed Skywalker to a tunnel, where they witness Tano escaping from the them. Rex then assisted Skywalker, Koon, Commander Wolffe and a team of shock troopers in searching for Tano.

Battle for Ringo Vinda
Following Tano's leaving of the Jedi Order, Rex then went with Skywalker to Ringo Vinda to take its space station back from the Confederate forces under Admiral Trench.

Redemption of Quinlan Vos
In the final years of the Clone Wars, Rex joined fellow troopers, including Cody and Jesse, to a mission to prove the redemption of the Jedi Master Quinlan Vos. Once the clones began to unload equipment, it was discovered that the asteroid they were on was about to explode. Quickly, the Jedi and clones escaped the asteroid, thanks to Vos. However, the Jedi was simply fooling all of them and was still an agent of Count Dooku.

Siege of Mandalore
Near the end of The Clone Wars, the Sith Lord Darth Maul had taken control of Mandalore with the help of the Death Watch and A group of Criminals and Gangs that have sworn allegiance to Maul.

Sometime later, Ahsoka Tano came into contact with the Jedi Order and requested the help of the Jedi in retaking the planet. Anakin and Obi-Wan traveled to Mandalore, but were forced to return to Corsucant as Chancellor Palpatine had been kidnapped by General Grievous.

Anakin however, managed to leave Rex and a battalion of clones on Mandalore to aid in the capture of Darth Maul. Sometime during the height of the Battle, Emperor Palpatine had issued Order 66 resulting in the Clones turning on Ahsoka, and allowing Maul to escape.

Rex removed his inhibitor chip before Order 66 was issued, sparing him from being forced to turn on Ahsoka. Eventually, Ahsoka and Rex had escaped and managed to fake their deaths before leaving the planet to live in exile.

Joining the Rebellion
Rex survived the Clone Wars and the Republic's transformation into the Galactic Empire. Following the Clone Wars, Rex was living with Commander Wolffe, the former commander of Wolf-Pack, and Commander Gregor, an elite Clone commando, in a modified AT-TE on the desert planet of Seelos. Several years prior to the Battle of Yavin, Rex and his comrades encountered a group of rebels that included the Jedi Purge survivor Kanan Jarrus and his apprentice Ezra Bridger. The crew of the Ghost had been sent by Rex's old ally, Padawan Ahsoka Tano, to obtain information on abandoned bases that the growing rebellion could use in their struggle against the Empire.

Rex and his comrades' first encounter with the Ghost rebels almost ended in violence when Kanan thought the Clone troopers were a threat and ignited his lightsaber. Rex's timely intervention managed to break up the fight between his comrades and Kanan. When Kanan's apprentice Ezra mentioned that he and his rebel companions had been sent by Ahsoka, Rex quickly realized that the rebels were friends and introduced himself and his companions. While meeting with the rebels inside the walker, Ezra tried to convince Rex and his companions to join the fight against the Empire. Rex laughed and declined, saying that his days as a soldier were over. After discussions with Kanan, Rex agreed to create a list of bases that the rebels could use but invited the four rebels to participate in a hunt for joopas as payment for supplying them with this information.

To allay Kanan's distrust of clone troopers, Rex revealed that he, Gregor, and Wolffe had managed to remove their control chips. The rebels reluctantly participated in the joopa hunt with the Lasat Garazeb Orrelios acting as both the "hunter" and the "bait." Zeb was swallowed by the joopa but succeeded in killing the creature. Having completed their side of the deal, Kanan wanted his rebel companions to leave but Rex invited them to stay for dinner. While dining, the Mandalorian teenager Sabine Wren discovered that Wolffe had secretly alerted the Empire to their presence and hid the messages that Ahsoka had sent them.

Wolffe, who distrusted the Jedi, had informed the Empire in the mistaken belief that he was protecting himself and his fellow clones. Rex was shocked by this revelation and confronted Wolffe. He managed to convince Wolffe that the rebels were their friends and that the Empire was their enemy. Shortly later, the clones and rebels were visited by an Imperial probe droid which damaged their auxiliary ship, the Phantom; preventing them from rendezvousing with their fellow crew aboard the Ghost, which was waiting in space. After destroying the probe droid, Rex and his companions prepared for the arrival of the Empire.

Despite Ezra's efforts to encourage Rex and his companions to join the Rebellion, Rex was adamant that the clones would stay behind to hold back the Empire while the rebels escaped on the Phantom. A force of AT-AT walkers led by the Imperial Security Bureau agent Kallus, a perennial foe of the Ghost crew, landed on Seelos. Despite being outnumbered and outgunned, Rex and his fellow clones stood their ground. At the urging of Ezra, the rebels intervened in the fight and managed to defeat the Imperials. Without air support, Kallus and his surviving AT-AT pilots were forced to retreat into the desert. Honored that Kanan and Ezra would return to save them, Rex and his comrades saluted the Jedi and agreed to join the Rebellion. Hera then arrived with the Ghost to pick them up. Later, Rex met with his old friend Ahsoka in space. Meanwhile, Gregor and Wolffe stayed behind and turned the remaining AT-AT into their new home.

Wits versus Discipline
After joining the Rebellion, Rex became part of the Phoenix rebel cell, which operated a fleet in space. During one of Ezra's levitation lessons, Rex exposed Sabine and Chopper's trick that involved locking the astromech droid Chopper's feet to the floor, preventing Ezra from levitating him. When Ezra was upset about the trick, Rex told the young Padawan about how a Jedi General he had once fought alongside became a great warrior by combining the Force with his wits. In response, Kanan told Rex that the boy had a lot of wits but needed more discipline.

While Rex and Kanan argued about how to train Ezra, the young Padawan sneaked away with Sabine, Chopper, and Zeb on a mission to salvage supplies from an Old Republic medical base. Rex had provided the rebels with the codes to this station. Unknown to the rebels, two Inquisitors known as the Seventh Sister and the Fifth Brother were waiting for them. The rebels barely escaped with their lives. Rex was present with Kanan and Hera when the younger rebels returned with news that the Empire had more Inquisitors.

Later, Rex oversaw target practice with Ezra, who was using a DC-15A blaster to try and hit a stormtrooper helmet that Chopper was moving around. Kanan came out, sternly reminding Ezra about his Jedi training, which sparked a minor debate between Rex and Kanan until Sabine informed them that Hera had called for a mandatory group meeting. The rebels then participated in a mission to scour Garel City for fuel cells to alleviate an energy crisis on the planet Rinn.

Infiltrating the Imperial Interdictor
An opportunity for Rex to resolve his differences with Kanan arose after Ezra Bridger and Commander Jun Sato's CR90 corvette Liberator were captured by an Imperial Interdictor during a mission to the Del Zennis system. Prior to their capture, Sato had managed to warn the other rebels that the Empire had a new warship capable of pulling ships out of hyperspace. Under the orders of Phoenix Leader Hera, Rex along with Kanan and Chopper were to infiltrate the Imperial warship and rescue Bridger and Sato. For this mission, Rex and Kanan were to disguise themselves as stormtroopers while Chopper was painted black to mimic an Imperial communications droid.

When Kanan expressed unease about working with the former Clone Captain, Rex reassured him that he knew which side he was on. After Zeb brought two captured sets of stormtrooper armor, Rex complained that the new armor was junk compared to the armor he had worn during the Clone Wars. For their mission, Rex, Kanan, and Chopper used a stolen Sentinel-class landing craft to travel to the Del Zennis system, which they learned had been classified by the Imperial authorities as a restricted testing area. While traveling through hyperspace, the two men argued about their mission. While Kanan wanted to find their people and get them out of Imperial custody, Rex insisted on disabling the new ship as well since it could pose a threat to the Rebellion.

Upon approaching the Imperial Interdictor, Rex managed to con the Imperial scanners by telling them that his shuttle was having engine problems. Using emergency protocols he and Commander Cody had invented, they managed to gain permission to dock in the Imperial Interdictor. After landing, Kanan used a Jedi mind trick to convince the stormtroopers guard in the hangar to let them through. Accessing a terminal, they learned through Chopper that Ezra was being transferred to a secure cell; meaning that the Empire had learned his identity. Disguised as stormtroopers, the three rebels made their way to Ezra's cell only to discover that the young Jedi had already broken free and locked his captors in his holding cell.

Mistaking Rex and Kanan for stormtroopers, Ezra stunned them with his lightsaber-blaster. When Rex and Kanan recovered, Ezra tried to save face by claiming that they had been involved in a big fire fight. Chopper however played a holographic recording of what actually happened. While Kanan was furious, Rex laughed it off and suggested that Ezra should have set his blaster to kill in case if was not them. When Rex and Kanan broke into an argument about whether to limit their mission to rescuing their rebel comrades or destroying the ship as well, an irritated Ezra broke off and accompanied Chopper on a mission to sabotage the Imperial Interdictor's gravity well projectors.

Disguised as stormtroopers, Rex and Kanan continued their mission to rescue their rebel comrades. When they stumbled on a stormtrooper patrol, Rex advised caution but Kanan decided to attack them. During the firefight, Rex complained that he could not see through his stormtrooper helmet and threw it at one of his opponents, knocking him out. After braving heavy fire, Rex and Kanan finally reached the detention cell holding Commander Sato and his crew. They then decided to make their way back to Commander Sato's CR90 corvette Liberator. On the way, they were attacked by more stormtroopers. Rex decided to buy his rebel comrades more time by holding off their pursuers and locking the blast doors.

Rex then took on the remaining stormtroopers in single-hand combat only to be stunned. Captured, Rex was brought before the Interdictor's commanding officer, Admiral Brom Titus. Recognizing Rex based on his code number, Titus tried to win Rex over by offering him immunity and reinstatement at an Imperial Academy if he would convince his compatriots to surrender. However, Rex rejected Titus' terms and the Admiral ordered an interrogator droid to torture him to death while two stormtroopers pinned him down over a round portal. Meanwhile, the other rebels managed to reach Sato's corvette safely. After hearing Rex being tortured through the Force, Kanan decided to rescue the former Clone Captain.

Before Admiral Titus could finish Rex off, Kanan entered the command bridge disguised as a stormtrooper and opened fire on Titus' men. After freeing Rex, the two men escape on an escape pod and boarded Commander Sato's corvette. They then attempted to flee into hyperspace but were again pulled out by the Imperial Interdictor. However, Chopper had rigged the Interdictor's gravity well projectors to draw in everything nearby including two escort light cruisers. These light cruisers crashed into the Interdictor; destroying it in a fiery explosion. Rex and the other rebels managed to escape into hyperspace in the nick of time. Following their escape, Commander Sato praised Rex, Kanan, and Ezra for rescuing him and his crew. Rex also thanked Kanan, who had managed to finally overcome his animosity towards Clone troopers. As a gesture of reconciliation, the two men saluted each other before they parted company.

Escape from Garel
Due to an accidental leak by Ezra Bridger on Takobo, the Seventh Sister and the Fifth Brother learned that the Phoenix rebel cell was hiding on Garel. The two Inquisitors informed their Imperial colleagues Agent Kallus and Admiral Kassius Konstantine, who sent an Imperial fleet from Lothal to attack Garel City. During the escape, Rex was with Commander Sato when their CR90 corvette was caught in the tractor beam of the Imperial Star Destroyer Relentless, Konstantine's ship. However, Phoenix Leader Hera managed to free Rex and Sato by using the Ghost to ram into the Star Destroyer's tractor beam projector. This enabled the remaining Phoenix rebel ships to escape into hyperspace.

Trouble at Concord Dawn
Rex was present during a meeting with Commander Sato and the crew of the Ghost to discuss the establishment of a new hyperspace route to the Lothal sector. With the Empire hunting them down throughout the Outer Rim, the rebels were in need of a new hyperspace route that would allow them to bypass Imperial forces. During the meeting, Sabine suggested that the rebels try penetrating the Concord Dawn system, which was home to a Mandalorian colony known as the Protectors. Rex advised his fellow rebels that the Mandalorians who inhabited the planet Concord Dawn had helped train clone troopers during the Clone Wars. At the end of the meeting, the rebels decided to send a diplomatic mission led by Hera, the Leader of Phoenix Squadron, to negotiate for safe passage with the Protectors.

Hera's diplomatic mission failed since the Protectors led by Fenn Rau had aligned themselves with the Empire. Under Rau's orders, the Protectors' Gauntlet fighters engaged Hera's RZ-1 A-wing interceptors in a vicious dogfight above Concord Dawn. Several rebel A-wings were destroyed and Hera herself was badly injured. Following the dogfight, Rex was present during a briefing where Sabine, one of the survivors, gave a report of the dogfight with Fenn Rau. Rex recalled that Rau had served as an instructor in the Grand Army of the Republic. With Commander Sato's permission, Kanan along with Chopper and Sabine took part in a mission to destroy the Protectors' starfighters on the third moon of Concord Dawn.

Mission to Geonosis
Rex later accompanied the crew of the Ghost to investigate an Imperial construction module above the planet Geonosis. As a veteran of the Clone Wars and a participant of the second battle that took place on the planet, Rex was aware that Geonosis was home to billions of Geonosians. Thus, he was surprised when Chopper picked up no sign of life on the planet. Ezra then sensed through the Force that all life on Geonosis had been extinguished. Upon landing in the seemingly abandoned module, Rex stayed aboard the ship with Hera and Chopper while the other rebels went to explore the station. Shortly later, they discovered that they had stumbled into a trap set by the Imperial Security Bureau Agent Kallus.

While Rex helped Hera to man the Ghost's defences against Imperial All Terrain Defense Pod walkers, Chopper managed to free the other rebels by unlocking the blast doors from the control console. Rex and the other rebels managed to escape the Imperial module aboard the Ghost. However, Zeb was separated and escaped in an escape pod with Kallus. After escaping Imperial TIE fighters, Rex and his fellow rebels began looking for Zeb. Despite sweeping through the system, they were unable to find Zeb which led Rex to remark that the Lasat had a slim chance of survival.

Meanwhile, Zeb and Kallus landed on Bahryn, one of Geonosis's moons. After working together to fight off Bonzami predators, the two struck an unlikely friendship. Zeb was able to activate his transponder and the crew of the Ghost were able to rescue him. Rex and the other rebels except Chopper greeted Zeb at the ship's gangplank after landing on Bahryn.

Finding a new base
Later, Rex and several other rebels including Commander Sato, the Lothal rebels, and Ketsu Onyo, Sabine's former Imperial Academy classmate, attended a briefing aboard the rebels' captured Imperial fighter carrier to discuss their plans to set up a new rebel base. By cross-referencing several Republic and Lothalian star charts, the rebels had identified the planet Berzite's moon as a prospective candidate. Since the rebels' fighter carrier were low on fuel, Ketsu recommended stealing fuel from the Imperial depot at Horizon Base.

As a result of the meeting, Commander Sato sanctioned a mission by the Lothal rebels to steal fuel from Horizon Base. Rex stayed aboard the rebel flagship during the Imperial attack on the Phoenix rebel fleet. After Chopper and the former Imperial inventory droid AP-5 relayed information about an Imperial trap in the Yost system, Rex accompanied the rest of the Phoenix rebel fleet to Atollon; a safe world with no Imperial presence.



Defending Chopper Base
Following the discovery of Atollon, Rex was placed in charge of the establishment of Chopper Base on the planet. From the base's command centre, Rex commanded operations to deliver shipments to the base and to establish sensor beacons that would serve as warning beacons for intruders. While Rex found the planet hot, dry, and unpleasant, he conceded that there was nothing trying to kill them. Later, he and Sabine venture to the base's northern perimeter to investigate the disappearance of Lieutenant Dicer, who had disappeared after planting her sensor marker.

Under Hera's orders, Rex and Sabine traveled there on the shuttle Phantom. Upon arriving, they found Dicer's helmet but saw no sign of the rebel. Shortly later, the two rebels were attacked by several large spidery creatures called krykna. Sabine managed to hold off the creatures but Rex was taken captive. The krykna carried him down to their underground lair where he was held in the mandibles of a sleeping krykna which hung suspended from the top of the cavern. Sabine and the Lothal rebels managed to free him but were pursued back to the surface by the krykna.

Rex and his companions managed to make it back to the Ghost but the starship was held down by a large web woven by the krykna. As the rebels fought to break their way out of the web, Rex and Chopper aided in the defense of the ship by fighting off a krykna intruder trying to breach the rear hatch. While Rex kicked and pushed the creature out, Chopper closed the rear doors. After escaping the krykna, Rex suggested reporting to Commander Sato that the base was unsafe. However, Hera responded that they had poured much effort into finding the base and should not give up. At Kanan's suggestion, the rebels erected a fence consisting of sensor markers around the base the following day.

Losing Ahsoka
Rex kept in contact with Ahsoka Tano as she traveled with Ezra, Kanan, and Chopper to the planet Malachor to seek answers on how to defeat the Sith. Holding Tano in high regard, Rex offered to come to her aid within two rotations. Tano declined the offer and reiterated that this mission was Jedi business. When Tano joked that she outranked Rex, he replied that experience always outranked everything. Ahsoka then replied that she had more experience than him due to her experiences during the Clone Wars and Jedi Purge. Rex remained at Chopper Base for the duration of the Jedi mission to Malachor.

In Rex's absence, the Jedi and Tano came into conflict with the Inquisitors and forged a tenuous alliance with the former Sith apprentice Maul to obtain a Sith holocron which purportedly contained the knowledge needed to defeat the Sith. After destroying the Inquisitors, Maul turned on the Jedi and blinded Kanan with his lightsaber. Later, the Sith Lord Darth Vader arrived and the Jedi and Chopper managed to flee but Ahsoka chose to stay behind.

Following the mission, Rex and the other Lothal rebels were later present on the runway when the Phantom landed at Chopper Base. They watched in silence as Kanan, now blind, and Ezra disembarked from the ship. When Rex saw that Ahsoka was not with them, he bowed his head in sadness at the thought of having lost a good friend.



Heist at Reklam Station
After Ezra and his team rescued the Weequay pirate Hondo Ohnaka from the Imperial prison at Naraka, Rex attended a briefing where Hondo shared information on the Imperial floating junkyard Reklam Station inside the planet Yarma to the Phoenix and Lothal rebels. After Hondo revealed that the Imperials were dismantling Old Republic Y-wing starfighters there, Rex told his fellow rebels that the Y-wings were reliable combat fighters. In the end, the rebel leadership agreed to dispatch a recon mission to Reklam Station.

Rex accompanied Ezra's team and Hondo on the Phantom to Reklam Station. On the way, the rebels exited hyperspace at Sereeda Waypoint where they were intercepted by a Mining Guild patrol. After escaping the Mining Guild patrol, the rebel team continued their journey to Yarma. While traveling inside Yarma's gassy atmosphere, the Phantom was pursued by two Imperial dismantler droids. While Chopper shot down one, Rex opened the Phantom rear hatch and fought with the second dismantler droid. He almost fell out but was pulled back into the ship by Zeb. In the end, Rex managed to shoot the droid but the Phantom sustained damage. Fortunately for Rex and his team, Sabine regained control of the ship.

After parking the Phantom beneath the station, Rex and his team managed to convince the local Ugnaught laborers to help them steal the Y-wings in return for their freedom. After stopping the conveyor belt, Rex and the other rebels began refueling the starfighters. Rex commented that refueling the fighters would not be their first nor last complication. After the Imperial Commander Brom Titus activated the magnetic locks on the Y-wings, Rex and Ezra departed to attack the Imperial control tower. Rex was forced to return when a third dismantler droid attacked Chopper, Sabine, and Zeb.

Rex used a magnetic crane to trap the dismantler droid against a metal container before pushing it down into Yarma's volatile depths. The dismantler droid then erupted in flames. After Ezra cut off the station's power, Rex and the other rebels departed on the Y-wings. Chopper used the relay navigation system to remotely pilot the other craft. Rex then traveled in the same Y-wing as Chopper and the rebels escaped into the space above Yarma. The rebel Y-wings were intercepted by an Imperial Star Destroyer commanded by Governor Arihnda Pryce. However, they were saved when the Phoenix fleet arrived with the fighter-carrier Phoenix Home and evacuated the fleet. Due to the efforts of Rex and his team, the Phoenix rebels obtained five Y-wings which were then transferred to General Jan Dodonna's unit.

Making peace with the past
Facing a shortage of supplies, Rex, Kanan, Ezra, Chopper and Zeb traveled to Agamar to obtain proton bombs from a wrecked Separatist supply ship that had crashed on the planet during the Clone Wars. After landing on Agamar, Rex took the opportunity to tell the other rebels about his Clone Wars experiences. When Ezra opined that the B1 battle droids did not look dangerous, Rex responded that these droids had killed many of his friends. Rex and the other rebels soon found the munitions depot and discovered that it was full of proton bombs. Before they could proceed further, they were trapped in a ray shield and stunned by several battle droids led by B1-268.

After awakening, Rex and his fellow rebels found themselves prisoners of the super tactical droid Kalani. Kalani informed the rebels that he presumed the master control shutdown command issued to the Separatist Droid Army at the end of the war to be a Republic trick, and prevented it from disabling his battalion. Despite Rex insisting that the Clone Wars had ended and demanded that he and his friends be released. Kalani refused, stating that he would have one last battle; a victory for the Separatist Alliance. Zeb was the only one excluded from the battle on account that his species had not been involved in the Clone Wars. Though Rex, Kanan, and Zeb expressed their opposition to the war game, Ezra managed to strike a bargain with Kalani. If the rebels managed to make it back to the command center, Zeb would be free and they would take all of the proton bombs in the hangar. Kalani accepted these terms, and the "simulation" began.

Unknown to the rebels or the Separatists, Chopper had evaded the battle droids and sent a distress call through a Neimodian escort shuttle. However, the Empire picked up the distress signal, and Governor Pryce gave the order for the nearest Imperial fleet to deploy forces on Agamar to wipe out the rebels. Back outside the supply ship, Rex, Kanan and Ezra began the "simulation" as a large force of battle droids marched on their position. Utilizing a "sword and shield" maneuverer whereby Rex would fire and the Jedi would deflect incoming shots, as well as using two thermal detonators to wipe out large sections of the droid attack wave, the trio made short work of the first group of battle droids. They managed to reach the hangar bay only to find that Kalani had deployed three droidekas to intercept them.

Unable to breach the droidekas' deflector shields, Rex and the rebels were forced to retreat. Rex and Kanan then agreed to provide covering fire while Ezra headed into the hangar to collapse a catwalk over the droidekas. Ezra was delayed by an unexpected reunion with Chopper but still managed to collapse the catwalk with the Force. Meanwhile, Rex was hit in the chest by a blaster bolt from a battle droid but survived due to his Clone trooper armor. While continuing their mission to the command bridge, they encountered Ezra. Rex chastised Ezra for his tardiness and warned him that one soldier's move affected everyone else in the team. In Rex's view, they needed discipline and strategy to succeed. Kanan counseled Ezra not to take the Clone trooper's words personally because Rex was determined to finish the battke.

After Rex knocked out another droideka with his helmet, the rebels managed to enter Kalani's command center and declared victory. However, Kalani disagreed on technical grounds and prepared to execute Rex. Before any further violence could break out, Ezra interceded and convinced the two sides to put aside their differences. After Imperial forces landed on Agamar and attacked B1-268 and a battle droid patrol, Ezra managed to win over Kalani to their side by pointing out that the Empire was the successor to the tyranny of the Old Republic. Kalani accepted Ezra's logic and agreed to help the rebels formulate an escape plan.

Working together, Kalani, Rex, and the rebels improvised a strategy which involved rolling the proton torpedoes onto the feet of the advancing Imperial AT-AT and AT-DP walkers. When Kalani admitted never attempting such a desperate strategy, Rex responded that was why the Clone troopers won; prompting Kalani to reply "not always." After knocking out one of the AT-AT walkers, the rebels and droids fled aboard three Neimoidian escort shuttles while under fire from the Imperial walkers. One of the shuttles was shot down but the rebels' and Kalani's shuttles managed to escape into space.

Once in space, Rex and the rebels corresponded with Kalani by hologram. When Kalani opined that their joint effort was a successful strategy but not a victory, Rex opined that it was a victory and thanked Ezra for finding a middle ground that allowed the clones and droids to end the Clone Wars. Both Rex and Kalani also accepted Ezra's explanation that both sides could not win the Clone Wars. Despite departing on friendly terms, Kalani thought that the rebellion had a poor chance of success and parted for parts unknown. Rex and the other rebels were later contacted by Hera. Despite not obtaining the proton bombs, they managed to acquire a new transport for the Ghost.

Evacuation of Mykapo
Rex and the Phoenix Squadron took part in a mission to evacuate rebel sympathizers from the planet Mykapo prior to an Imperial crackdown. After the Ghost and a local rebel cell called the Iron Squadron destroyed an Imperial advance patrol, Rex and the crew of a Hammerhead corvette evacuated the rebel sympathizers to safety. Rex contacted Hera and Kanan to inform them that he would be rendezvousing with the rebel fleet. Later, Rex corresponded with Hera and her crew by hologram while discussing a plan to rescue the Iron Squadron captain Mart Mattin from Imperial forces. This mission was ultimately successful and Mart managed to reunite with his uncle Commander Sato.

Behind the scenes
Rex is voiced by Dee Bradley Baker in Star Wars: The Clone Wars and Star Wars Rebels. Dave Filoni speculated that Rex might be the old member of the Endor strike team from Return of the Jedi. "I really do think that Rex is that guy on Endor," he said, "I really do. Why else is there a bearded old guy on Endor, Tano? Why? It makes no sense. If you don't want that to happen, do you know what that means? I'm gonna make that happen, I'm getting like Palpatine, I'm getting power crazy." In Legends, the character was identified as Nik Sant.

Non-canon appearances

 * LEGO Star Wars: The Force Awakens