The Prodigal Knight

The nickname of Master Revan from Star Wars: Knights of the Old Republic for Xbox and PC, given to him/her after successfully defeating Darth Malak, destroying the Star Forge, and bringing balance to the Force and justice to the galaxy. The significance of the name refers to how Revan was originally captured as a Sith Lord, brought back from the brink of death by Bastila, had his/her memory erased and rewritten, regained his/her memories of the Star Forge and of being Dark Lord of the Sith, remaining a Jedi despite the resurfacing memories, mastering the force...and so on. The point is, Revan was going to conquer the galaxy as a Sith Lord, and ended up saving it as a Jedi.