‘Grey’s’ Washington to do gay rights PSA

Actor previously ran into trouble for using slur against co-star T.R. Knight

Matt Sayles / AP

Actors T.R. Knight, left, and Isaiah Washington had a falling out after Washington twice used an anti-gay slur in reference to his ‘Grey’s Anatomy’ castmate.

updated 2:40 p.m. ET May 2, 2007

NEW YORK - Isaiah Washington, who came under fire after using an anti-gay slur, will appear in a public service announcement on behalf of the Gay & Lesbian Alliance Against Defamation and the Gay, Lesbian & Straight Education Network.

“We’re gonna have — I want to say at least two versions of it at this point. We may broaden our message a little,” the actor’s publicist, Howard Bragman, told The Associated Press in a phone interview Wednesday.

Washington ran into trouble at the Golden Globe Awards in January after he used an anti-gay slur during a backstage press conference while denying he’d used it previously against “Grey’s Anatomy” castmate T.R. Knight.

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People magazine reported last October that Washington had allegedly used the slur during an on-set dustup with co-star Patrick Dempsey.

Knight said soon after the incident that he was gay.

After being criticized by GLAAD, a gay and lesbian advocacy group, and the ABC network, Washington issued an apology and sought counseling.

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Bragman said ABC, which is owned by The Walt Disney Co., was planning to shoot the ad in the next few weeks.