ABC and Isaiah Washington‘s rep have confirmed that he was not asked back to the hit series Grey’s Anatomy for it’s fourth season next fall.

Washington’s publicist released this statement from Washington saying, “I’m mad as hell and I’m not going to take it anymore.”

TV Guide‘s Michael Ausiello, who first broke the story, reports that the decision was due only in part to Washington’s on-set troubles, and was a result of a “pattern of problematic behavior.”

Washington’s publicist, Howard Bragman, also said that Grey’s creator Shonda Rhimes called Isaiah late Thursday and told him he would not be invited back to the show next season. The rest of the Grey’s cast was notified a few hours later.

The decision to fire Washington came after an on set spats with co-star Patrick Dempsey, where Washington used the word “faggot” and forced T.R. Knight to come out to the public.

Washington has since apologized and even filmed a public service announcement for GLAAD.