Isaiah Washington is still talking about his termination from Grey's Anatomy — and now he says his former co-star Patrick Dempsey supports his assertion that T.R. Knight should have been fired.

"I know Patrick Dempsey has supported me by stating that if there is anyone that needs to be fired it is T.R. Knight because he has created such a negative environment on that set because he felt like he has not been treated and given the same leading man kinds of story lines," Washington told gay journalist Keith Boykin.

Washington alleges T.R. Knight "has been working on a conspiracy to get Patrick Dempsey and myself off the show for the last year and a half."

Washington is scheduled to be on Larry King Live to discuss the situation on Monday, July 2.