Palpatine

Sheev Palpatine was a sith lord and a politician, who served for many years as senator and chancelor. When not at work, he would appear in his hollogram form to communicate with his apprentices.

He later persuaded Anakin Skywalker to join the dark side and help do his dirty work. He told him he could get the power to save the ones he loved, but at the end of Revenge Of The Sith, he was seen laughing at Anakins' loss.

Palpatine still managed to keep his apprentice however for the next twenty years. One day he went too far by saying he would kill Luke and found himself thrown down a 200 mile shaft into the reactor.