Acclaimed actor 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, Callies father. Elizondo appeared in "Chicago Hope" and "Princess Diaries I & II," among many other projects. The "Grey's" episode, entitled "My Favorite Mistake," has not yet been assigned an airdate.

"Grey's Anatomy" airs Thursdays (9:00-10:00 p.m., ET) on the ABC Television Network. It stars Ellen Pompeo as Meredith Grey, Patrick Dempsey as Derek Shepherd, Sandra Oh as Cristina Yang, Isaiah Washington as Preston Burke, Katherine Heigl as Isobel Izzie Stevens, Justin Chambers as Alex Karev, T.R. Knight as George OMalley, Chandra Wilson as Miranda Bailey, James Pickens, Jr. as Richard Webber, Kate Walsh as Addison Shepherd, Sara Ramirez as Callie Torres and Eric Dane as Mark Sloan.

"Grey's Anatomy" is produced by ABC Television Studio and executive-produced by creator Shonda Rhimes, Betsy Beers, Mark Gordon and Krista Vernoff.

Taye Diggs has a really bad track record when it comes to successful tv shows. Therefore, this is a horrible sign.

Hector Alizondo Is Great! Terrific On "chicago Hope" (loved That Show & What A Cast-man!) Plus, Don't Forget His Wonderful Role In "pretty Woman".

I Hope Hector Become A Permanant Fixture, If Not On Grey's, Another Series, Because It Only Improves Whenever He's Involved:D

Taye Diggs. What Can I Say? That Smile Could Melt Frosty. Well, Maybe Mrs. Frosty;)