General Grievous is a fictional character in the Star Wars franchise. He was introduced as a villain in 2004 in the animated series Star Wars: Clone Wars, before making his live-action debut in the 2005 film Star Wars: Episode III – Revenge of the Sith.
Grievous serves as the Supreme Commander of the Confederacy of Independent Systems‘ Droid Armies during the Clone Wars. He is trained in all lightsaber combat forms by the Sith Lord Count Dooku to rival the Jedi of the Galactic Republic. In the Star Wars“Legends” universe of non-canon novels, comic books, video games and animated series, Grievous was a Kaleesh warlord, who suffered great injuries in a ship crash and was then rebuilt as an alien cyborg.