'Grey's Anatomy' Actors Star in GLAAD Ads

Four actors from "Grey's Anatomy" are being featured in a new ad campaign preaching tolerance for gays and lesbians. The ads are being unveiled by the Gay and Lesbian Alliance Against Defamation.

Isaiah Washington was fired from the ABC hit after using an anti-gay slur backstage at the Golden Globe Awards in January while denying he had used the word earlier against fellow cast member T.R. Knight.

Knight, Sara Ramirez and Kate Walsh of "Grey's Anatomy" all made ads. Alexandra Billings, a transgender actress who appeared in one episode of the medical drama, also participated. GLAAD released 25 new ads in all that it will encourage TV networks to air.

Washington wasn't included, although he filmed a separate public service announcement for GLAAD that aired on ABC earlier this year.