It was a great blow to the Jedi order when Count Dooku voluntarily renounced his commission. A strong-minded man, Dooku's ideas were often out of step with those of the Jedi Council, despite the fact that his former mentor, Yoda, held a lofty position in that governing body. His challenging views were often echoed by his former Padawan, Qui-Gon Jinn, another Jedi who would on occasion defy the Council.
Dooku was a political idealist. He felt that the Jedi weakened themselves by serving an institution as corrupt as the Republic. After his departure, he disappeared for years, re-emerging as a political firebrand fanning the flames of rebellion in the galaxy. In an alarmingly short time, Dooku rallied thousands of systems to his cause, building a growing Separatist movement that threatened to split the Republic.

Opportunists working in Dooku's name would start flashpoints of violence, and it was all the Jedi could do to maintain order in these turbulent times. For all the strife, the Jedi Council refused to believe that Dooku was personally responsible for the worst of the conflicts, believing that his Jedi training elevated him above such acts.

But the Jedi didn't realize Dooku's secret. 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, the Dark Lord of the Sith. By Sith tradition, Dooku adopted ...

To defecate. As seen in The Venture Bros. episode "Victor. Echo. November."

A ridiculously small bearded penis.

Some refer to it as, "The Count", or just plainly "Dooku".