Rex

Rex (born CT-7567) is a former Clone Trooper and a major character in the Star Wars franchise. He is a supporting character in Star Wars: The Clone Wars and returned in Star Wars Rebels. He was a Clone Trooper from Kamino and stayed loyal to Ahsoka Tano and the Galactic Republic due to the removal of his command chip after Order 66, along with Commander Wolffe and Commando Gregor.