Emperor
Palpatine
The Big-Man, the Hot-Shot.....This is the guy behind the scenes. Emperor Palpatine has mastered the Dark Side and influenced Darth Vader into joining up with him. He is evil incarnated and his intentions of taking over the Galaxy are immeasurable. The Emperor's arch-nemesis would have to be the whole Rebel-Alliance. Although, he would like to have Luke Skywalker as his other brainwashed victim, if he refuses, he has no other choice but to exterminate him.