CT-7567 or "Rex" was a Clone Captain (CTC) and was a member of the 501st Legion but joined ARC-8448 "Costin Jr" on many Purple Squad missions. Rex participated in the Second Battle of Maridun and the Battle of Rectus IV. Rex is close friends with all of Purple Sqaud because "They all fight together and they never leave a man behind". Rex was one of the clone that survived at Maridun, He escaped from Clone-Killer together with ARC-1004 and ARC-5688 after the death of Dogma and Shaun. He is very skilled with his DC-17 Hand Blasters and usually good with grenades. He is a very noble clone and he always listened on commands, he was a Clone Captain in the 501st, but when he went over to the Purple Sqaud he did become a ARC Sergeant.. During the Battle of Devaron Rex was the last member to land