Darth Malak. However, a battle with a Jedi strike team left Revan captured and severely injured. The Jedi Order wiped the memory of his dark side deeds and returned him to the order under a new ...

Rejoining the Jedi, Vos was one of the few Jedi that survived Order 66. Darth Revan is a Sith Lord ... By the time the war ended, Revan had fallen to the dark side completely.