Gregor

"You were captain and part of an elite squad, a Clone Commando. The file says you were reported missing in action during...the Battle of Sarrish."

- Colonel Meebur Gascon informing Gregor of his forgotten past

Gregor, officially known as CC-5576-39 or simply CC-5576, was a clone of the bounty hunter Jango Fett raised on Kamino and specially trained to be a Clone Commando.

Armor and Equipment
Gregor was outfitted with battered, yellow-marked Clone Commando armor and a DC-17m blaster rifle. His helmet was adorned with tally marks of the number of battles he participated in during the Clone Wars.

Missing in Action
"He's doing what a soldier does, sacrificing himself for the lives of others."

- Meebur Gascon, as D-Squad flees Abafar

Gregor originally served the Galactic Republic in command of the elite Foxtrot Group alongside the 212th Attack Battalion during the Clone Wars. In the ferocity of the Battle of Sarrish, he was reported as missing in action. Soon after, he became stranded on Abafar due to a shuttle crash with no memory of what had happened to him. In 20 BBY, he was discovered by D-Squad in Pons Ora, working as a regular dishwasher. The D-Squad helped Gregor remember his past, and he agreed to help them on their mission. After recovering his armor and weapon from Borkus, the team made their way to a Separatist complex where Rhydonium was being loaded onto a Republic cargo shuttle as part of a plot to bomb the Republic strategy conference.

Gregor covered the D-Squad while they made their way to the shuttle, intending on meeting them there. When Colonel Gascon and M5-BZ were downed by an explosion, Gregor returned to retrieve them and held the droids off as they escaped. The Clone commando used the rhydonium canisters to defend against numerous droids, causing most of the complex to be destroyed. While he was presumed dead, Gascon held hope for his return to the Republic.

War-Mantle
Gregor eventually found his way back to the Republic and came into contact with Clone Captain Rex. At the end of the war, however, the Republic was transformed into the Galactic Empire. Gregor was among the many commandos selected to train the new generation of Stormtroopers as the clones were gradually phased out. He was unwilling to serve the Empire, however, and deserted the army. He was captured and imprisoned as a traitor but eventually freed by allies of Captain Rex, Clone Force 99.

Behind the Scenes
"You made me remember who I am! I'll make my way home! I promise!"

- Gregor to Colonel Gascon

Gregor made his first appearance in season five of The Clone Wars in the episode "Missing in Action." Like all other clones on the show, he was voiced by Dee Bradley Baker.

The Aurebesh text of Gregor's databank file lists him as a Sergeant 1st Class. However, since Colonel Gascon identifies him as a Captain in the episode, this article assumes the latter rank is accurate.

Star Wars: The Clone Wars

 * "Missing in Action"

Star Wars: The Bad Batch

 * "War-Mantle"