Character
Lord Tyranus
Lord Tyranus in Star Wars: The Clone Wars (2008), played by Corey Burton.
Dooku was a Force-sensitive human male Serennian who served as a Jedi Master during the waning years of the Galactic Republic and later Count of House Serenno. He became dissatisfied with the Jedi Order and fell to the dark side of the Force, becoming the Dark Lord of the Sith Darth Tyranus.