The Good Guy: Luke Skywalker (Mark Hamill)

Regular Quote: "I won't fail you. I'm not afraid."

The Possession: Just as he's at his weakest moment (hanging from the lower pylons of Cloud City with one hand sliced off), he's taken over by the awesomely named Glasya-Labolas, captain of manslaughter and bloodshed in hell.

Newly empowered, Luke recuperates and gains his full Jedi powers by returning to Dagobah, where he eats a slow-roasted Yoda. Taking down Darth Vader, he then travels to the Death Star, chucks a surprised Emperor Palpatine down the nearest shaft and commandeers the scary space base.

Next stop: every planet that ever annoyed him and a quick blast from the enormous cannon. Bye bye, Hoth! See ya, Tatooine!

Demonic Dialogue: "Rule the Universe as father and son? Screw that! I plan to rule alone! Your mother was a slave, dad! And now she's serving in hell!"