General Grievous is a fictional character from the Star Wars universe. He was voiced by John DiMaggio in Chapter 20 of Cartoon Network's animated series Clone Wars. Richard McGonagle took over the voicing of Grievous for the rest of the micro series, and Matthew Wood voiced Grievous in Revenge of the Sith. Dark Horse Comics began publishing a four-part comic book about General Grievous in March, 2005.Character overviewGeneral Grievous is one of the most highly skilled warriors in the