emporer Palpatine
in his early days as senator of the galactic republic. palpatine seemed like an ordinary politician.  however, as the republic fell apart, the senator's hidden thirst for power grew and his true evil spirit became apparent.  he declared himself emporer of the galaxy,  and used the dark side of the force as a means to enforce his tyranny.  he nearly succeeded in wiping out the jedi knights, who stood as the most potent threat  to his reign of terror.  as destiny would have it, luke skywalker, the son of palpatines loyal apprentice/padawan darth vader,who would ultimately bring about the emporers downfall.