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 the Grand Army of the Republic's famed 501st Legion during the Clone Wars. He was still alive and active in the fight between the Galactic Empire and a group of rebels about 4 years before the Battle of Yavin.

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

The Clone Wars
Rex fought at the Battle of Geonosis against the Confederate forces. He survived the battled and continued to serve in the army 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 2nd in command. He was then given command of the 501st Legion and Torrent Company. Rex was eager to follow orders but became less wound tight in time. He also worked alongside Commander Cody at battles such as Tibrin. He also served alongside Jedi General Obi-Wan Kenobi.

Battle of Christophsis
Rex then went with Skywalker, Kenobi, Cody and their forces to liberate Christophsis from the Confederate forces under General Whorm Loathsom and Dooku's assassin, Asajj Ventress. Rex then took part in setting up an ambush on the approaching Confederate forces. However, they realized that the battle droid knew where they were. Rex, Skywalker and their troops then came to rescue Kenobi, Cody and their troops from the battle droids. They were then rescued by Hawk's gunship. Rex then assisted Cody in performing a robolobotomy on the tactical droid's head that one of their troopers had taken. They found out that it had all their information on their positions. Rex and Cody were then joined by Skywalker and Kenobi, who suspected there was a spy in their midst. Kenobi and Skywalker told Rex and Cody that they were going to investigate the Confederate Headquarters to find the spy. Rex and Cody were then ordered to tell no one of their mission. As they were leaving, Cody noticed that someone had left their comlink on. Rex and Cody then pursued someone running. However, they lost him in the mess hall realizing that the spy was a clone.

Rex and Cody then decided to keep this to themselves. They then tried to contact the jedi, to no avail. Rex then had R2 analyze the communication history to see if anyone sent out any unauthorized transmissions. Rex then noticed irregular wavelengths that were too low and infrequent to be detected normally. They then saw that they were coming from Sergeant Slick's barracks. They then question Slick's men, all of whom had an alibi except Chopper, who lies about collecting battle droid fingers. However, Slick slipped when he revealed that he knew the Jedi were gone. Slick then escaped, evading Rex and Cody. After blowing up many of the gunships and AT-TEs, Rex and Cody then went to the command center.

There, they saw that he was hiding in the vents. They then set up a trap. Rex then held Slick as he stole Cody's empty gun. Rex and Cody then fought Slick, subduing him. After the Jedi returned and Slick was taken away, Rex and Cody were the able to save of few of the heavy cannons. As the Loathsom's forced move on their positions, Rex and his men accompanied Skywalker as he took on the Octuptarra droids. Rex then met Skywalker's apprentice, Commander Ahsoka Tano and laugh when she called Skywalker "Skyguy". Rex then showed Tano how they did things at the front. Rex then told Tano that she may outrank him, but it's experience that outranks everything. Rex then spotted a Deflector shield coming from the Confederate forces.

After Skywalker and Tano left to destroy the deflector shield, Rex then assisted Kenobi in holding back the droids before they destroyed the heavy cannons. As Kenobi lead a charge against the droids, Rex and his men drew the droids into the buildings. However, most of Rex's unit was wiped out. Rex was then ordered to pull back their forces in order to protect the cannons. After Kenobi surrendered and the droids were overwhelming his position, Rex then saw the shield drop. Rex then 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. After landing Rex and the rest then used their ascension cable to climb the cliff's below the Monastery underfire from two droid battalions. After making the climb, Rex and his men secured the Monastery. After Skywalker and Tano found Jabba's son, Vulture droids attacked as two Separatist landing crafts landed, deploying more battle droids under the command of Ventress. Rex and his men then retreated into the monastery.

Rex and his men then stayed behind to keep the battle droids busy. After Ventress cut the door's lock, Rex and his men fought the droids. After the droids subdued his men, Rex then picked up his pistol and tried to shoot Ventress. Rex was then disarmed and was then force strangled by Ventress, demanding the location of Skywalker. Rex refused, but Ventress was able to use a mind trick to make him contact Skywalker. However, Rex was able to alert Skywalker that Ventress was coming.

When Rex was contacted by Skywalker, a battle droid came over. Rex then punched and took it's weapon. Rex and his then fought the droids guarding them. As they were surrounded, help arrived from Kenobi and Cody. Rex was then able to destroy a spider droid with detonator. Rex then 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 Rishi moon
Rex then went with Cody on a inspection tour using Obex. After inspecting of the tracking station at Pastil, Rex and Cody then went to the Rishi moon station. Enroute, 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. 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 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 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 sett the gas off manually. Rex and the others then tried to go back for him but Hevy blew up the station. Rex and the others were rescued by a gunship. Following Echo and Fives medal acceptance, Rex accepted them into the 501st.

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 surronding 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.

Under the Empire's reign
Rex was still alive 16 years after the establishment of the Galactic Empire, living with other clones in an All Terrain Tactical Enforcer.