CT-5555 'Fives'

CT-5555 "Fives" was a Domino Squad clone who became an ARC trooper. He fought through the Umbara campaign under a Jedi general who turned on his own troops, and later uncovered the inhibitor chips that would trigger Order 66. He tried to warn the Jedi on Coruscant and was shot by clone shock troopers before the conspiracy could be exposed.