Taye Diggs will guest star in Grey's Anatomy in a special two-hour episode that will air later this season. Diggs, an established star of film, television and theatre, made his feature film debut starring opposite Angela Bassett in the box office hit, How Stella Got Her Groove Back, and has since earned critical acclaim in several leading roles.

"Grey's Anatomy" also welcomes Emmy-winning actor Hector Elizondo, who is currently in production as Mr. Torres, Callie's father. Elizondo appeared in "Chicago Hope" and Princess Diaries I & II, among many other projects.

The "Grey's Anatomy" episode, entitled "My Favorite Mistake," has not yet been assigned an airdate.