Count Dooku/Darth Tyranus

Once a Jedi Knight, Count Dooku left the Jedi order and disapeared for many years before he reapeared as a political idealist, building a growing Separatist movement that threatened to split the Republic. What the Jedi didn't know was that behind a veneer of elegant charisma and well-tabled political arguments, Dooku had been corrupted by the power of the Dark Side. After his departure from the Jedi order, Dooku was seduced to the Dark Side by Darth Sidious (Palpatine), the Dark Lord of the Sith. By Sith tradition, Dooku adopted the name Darth Tyranus.

In both guises, Dooku began recruiting agents for what would eventually amount to the death of the Republic. As Tyranus, he contacted the notorious bounty hunter Jango Fett to become the template for a hidden clone army on Kamino. As Dooku, he appealed to the greed of the galaxy's most powerful commerce barons to consolidate their forces to challenge the Republic.

Deep within the mighty spires of Geonosis, Dooku chaired a meeting of the minds to formally create the Confederacy of Independent Systems. Separatist Senators alongside representatives from the Commerce Guild, the Trade Federation, the Corporate Alliance, the InterGalactic Banking Clan and the Techno Union pooled their resources together to form the largest military force in the galaxy. The Separatists were ready for war.

The Jedi Knight Obi-Wan Kenobi discovered the treasonous meeting and warned the Republic, but not without being captured. Kenobi was soon joined by Anakin and Padmé, who had come to Geonosis in an attempt to rescue him. Learning the presence of his master's son, Dooku released Anakin before he entered in the execution arena and bring him before him. Anakin explained his new plan to Dooku. Though uncertain about this, Dooku accepted, understanding that Anakin's plan was also concerning Kenobi's fate.

Two years later, at the formation of the New Order, Dooku and Anakin went in the Jedi Temple with troopers to arrest the Jedi Knights and consequently kill them. Unfortunately, as they were chasing some fugitives, Dooku was taken by surprise by three Jedi who killed him.