Count Dooku

Count Dooku, also known as Darth Tyranus (/tɪˈrænəs/ tih-RA-nəs), is a fictional character in the Star Wars franchise. He was introduced in the prequel film trilogy, first appearing in Attack of the Clones (2002) and then returning in Revenge of the Sith (2005). He is portrayed by Christopher Lee in both films and is voiced by Corey Burton in most of the video games and animated productions in which he appears. The animated productions include the series Clone Wars (2003–2005), The Clone Wars (2008–2014; 2020), and Tales of the Jedi (2022). Lee voices Dooku in the 2008 Clone Wars animated film. Dooku also appears in novels and comics.

Dooku is the Count of Serenno, his home planet. He is also a former Jedi Master who was trained by Yoda. He becomes disillusioned with the Galactic Senate and the Jedi Order due to the former's corruption and the latter's complicity, and eventually turns to the dark side of the Force. He becomes an apprentice of the Sith Lord Darth Sidious, and plays a pivotal role in his master's rise to power. Dooku leads the Confederacy of Independent Systems throughout the Clone Wars, all the while engineering the creation of the Republic's clone army. Although he hopes to eventually overthrow Sidious, Dooku is ultimately betrayed by his master, who arranges his death at the hands of Anakin Skywalker. Regarding the origin of the name, Christopher Lee states in his autobiography that it comes from the Japanese word for "poison" (doku) .