Grey's Anatomy stars are back at work!

Grey's Anatomy stars Isaiah Washington and T.R. Knight are back at work.

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'Grey's Anatomy' star Isaiah Washington annoyed Knight by passing him a gay slur. He called him 'faggot,' on the set which encouraged Knight to leave the show.

But after a self-imposed stint in rehab, Isaiah is now back at work.

Patrick Dempsey said,

I haven't spoken to him about it. You do have a feeling when you look at him that something is different and that he is working on things.

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You can't get away from the fact he's doing a great job on the show. He does beautiful work.

Hmm! But what makes Knight to join the show?

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