Count Dooku, also known as Darth Tyranus or Lord Tyranus, was a powerful Sith Lord and Head of State of the Confederacy of Independent Systems and he served as the primary antagonist of Episode II: Attack of the Clones and as the tertiary antagonist of Revenge of the Sith. Dooku is also the main antagonist of the tv show Star Wars: The Clone Wars, set during the Clone Wars, while his master, Darth Sidious is the "Bigger Bad" main antagonist. Dooku also served as the main antagonist of the film Star Wars: The Clone Wars (2008) before the TV series began.