CT-3636 was a clone trooper who served in the 501st Legion in the months following the end of the Clone Wars. CT-3636 was part of an enforcer squad led by the Sith Lord Darth Vader who were attempting to find the Jedi Knight Cho'na Bene in the Howling Ruins. CT-3636 was contacted by fellow clone trooper CT-3632, who informed him that no activity had been detected, which CT-3636 responded to by requesting a seventy-meter perimeter sweep. Shortly after, he was shot and killed when the squad were ambushed by insurgents.