Revan

Revan was one of the most famous and powerful jedi in galactic history.

As a young jedi, he went to war against Mandalore the Ultimate. After he killed Mandalore, he hid Mandalore's Mask on Rekiad and explored into the unknown reigons. He discovered Dromund Kaas, and attempted to kill a sith named The Emporer. However, he was twisted to obey The Emporer, and was sent to destroy the republic. The jedi sent a strike team to capture Revan, and they wiped his memory and programed him with a new identity. He recovered his dark past and destroyed his former empire, then he went back to Dromund Kaas, and was captured by the sith. He was in prison for 300 years, life prolonged by sith alchemy, until he was rescued by Havoc Squad. He was presumed KIA in The Foundry, a Rakata Superweapon. However, his legacy lives on as a becon of hope for the republic.