Isaiah Washington Returns To 'Grey's' For First Time Since 2007 Firing

On "Grey's Anatomy," one character made an unexpected return.

DR. BURKE: "Don't you run the risk of your cells undergoing apoptosis when seeded on the hydragel?"
CRISTINA: "I was very surprised."

That's right, Dr. Preston Burke is back.

Sandra Oh tweeted the big news to fans -- many who responded with... Nooooo!

You might remember back in 2007, ABC decided not to renew Isaiah Washington's contract after an on-set incident with fellow cast members Patrick Dempsey and T.R. Knight. Apparently, he had made a homophobic slur, but later apologized.

But some fans were glad to see him back -- it finally provided some closure to his storyline -- and Cristina's. Burke offered Cristina an amazing opportunity to replace him at his hospital. We can only guess she'll take the job since she is leaving the show.

Oh spoke exclusively with The Hollywood Reporter, saying...
"Creatively, I really feel like I gave it my all, and I feel ready to let her go,"

Sandra Oh's last episode will be the season finale of 'Grey's Anatomy,' which airs May 15th.