The Gay and Lesbian Alliance Against Defamation wants an apology from Grey’s Anatomy star, Isaiah Washington.

The incident steams from I.W’s Golden Globe royal mistake in calling Grey’s co-star, T.R Kelly a “faggot” during a post-awards show press conference.

“When Isaiah Washington uses this kind of anti-gay slur – whether on set or in front of the press – it does more than create a hostile environment for his castmates and the crew of ‘Grey’s Anatomy.’ It also feeds a climate of hatred and intolerance that contributes to putting our community in harm’s way. Washington’s repeated use of it on-set and in the media is simply inexcusable,” GLADD said in a statement to TMZ.

T.R made a visit to the Ellen DeGeneres Show today, confirming that Isaiah used the slur on set back in early Oct-forcing him out of a dark corner in the closet. T.R, perhaps best known as O’Malley,is in fact gay.