CC-5576-39/Legends

"Impressive. Gregor, your designation is CC-5576-39. You were a captain and part of an elite squad, a clone commando. The file says you were reported missing in action during the Battle of Sarrish."

- Meebur Gascon

CC-5576-39, selfnamed "Gregor," was a clone commando and captain who served in the Grand Army of the Republic. Bred from the Mandalorian bounty hunter Jango Fett on Kamino, Gregor initially served the Galactic Republic and had participated in the Battle of Sarrish. Sometime during the battle, Gregor was reported missing in action and for unknown reasons had ended up on the remote world Abafar after losing his memory, where he was given a new life as a dishwasher in a diner by Borkus. He was later recruited by the Republic's D-Squad, which had been stranded on Abafar. He helped the droids get to a shuttle, for they could fly to a Republic Cruiser. He later died (not confirmed) saving Meebur Gascon and M5-BZ, so they could get to the shuttle.

Behind the scenes
Gregor made his first appearance in "Missing in Action," an episode in the fifth season of the Star Wars: The Clone Wars television series. The preview clip that Gregor appears in was shown at Celebration VI. He is voiced by Dee Bradley Baker. In a Season 5 trailer of the Clone Wars, the Aurebesh that displays on Gregor's profile notes that he went missing in action during the Battle of Sarrish.