Count Dooku

Count Dooku is a fictional character of the Star Wars franchise who served as the secondary antagonist in the Star Wars: Prequel Trilogy; appearing as the main antagonist in Star Wars Episode II: Attack of the Clones and the quaternary antagonist in Star Wars Episode III: Revenge of the Sith.

He also appeared as the main antagonist in the 2009 animated film Star Wars: The Clone Wars and it's TV series before serving as the secondary main antagonist in it's series finale; The Lost Missions.