Valiant 501 Legion

Rex served as the leader of the 501 Legion and throughout the war, he proved to be an excellent commander and soldier.

Rex went through the entire war and at the end of it, learned that the clones have a chip embedded in their heads, from a dead friend of Fives.

Rex relinquished his responsibilities as leader of the 501 Legion and handed them over to the EPPO clone, while he went AWOL.

After that, Rex disappears, but it is known that he did not follow order 66.

He and two other clones are met by the Jedi on the planet Silo. There, he reunited with former Jedi Ahsoka Tano.

From this moment, Rex begins to help the resistance fight the Empire, he made a great contribution to the victory of the resistance.

The last time we see Rex is at the battle of Endor, the climactic battle of the war with the Empire.

CAPTAIN REX