CT-7567, nicknamed “Rex,” was a clone trooper captain during the Clone Wars, the galaxy-wide conflict between the Galactic Republic and the Confederacy of Independent Systems. Rex was in command of Torrent Company, a unit of the famed 501st Legion in the Grand Army of the Republic. Rex served under Jedi General Anakin Skywalker, and was a freethinking, tough, and aggressive trooper. Though loyal and committed to his duty and to his fellow clones, Rex proved capable of questioning his superiors and, under extreme circumstances, outright disobeying orders if he believed them to be wrong. Rex displayed a strong working relationship and a degree of friendship with Commander Cody.
Wullf Yularen was a male Human who had a long history of service in both the Galactic Republic and the Galactic Empire. During the Clone Wars, Yularen was persuaded by Palpatine to join the Republic Navy as an admiral—becoming one of the youngest naval officers to hold the rank—and the naval commander of Jedi General Anakin Skywalker’s fleet. Yularen was aboard the Death Star when it was attacked by the Rebel Alliance, and he perished when Rebel pilot Luke Skywalker successfully destroyed the station.