ABC Celebs Gather For Homeless Charity

"This is the first we're all seeing each other again," said Justin Chambers (Alex), who came with wife Keisha.

Excited to see co-star T.R. Knight (George), Ellen Pompeo (Meredith) embraced him and asked, "What happened to your blue hair?"

"It was red," corrected Knight, who recently dyed his hair.

"He's so fun, such a crazy personality," said Pompeo, escorted by fiancé Christopher Ivery.

Sara Ramirez (Callie) found it "interesting" that Grey's writers chose to end the season by leaving unclear the fate of Knight and Isaiah Washington (Burke) -- the actors at the center of a highly publicized feud after Washington called Knight a homophobic slur.

"That's why we're talking about it," she said of the cliffhanger.

"I think it's cute," agreed James Pickens Jr. (Richard). "It gives folks something to look forward to when the new season starts."

Less amused was Knight, who has still has not been informed of his future with the show. "It's all kind of in flux right now," he said.

But Chambers thinks "the show would be crazy for them not to return. We need them."

Many more photos (Charlie Sheen, Patrick Dempsey, Sara Ramirez, Ellen Pompeo, Rebecca Gayheart, Eric Dane, Bradley Cooper, Mary Lynn Raskub, Amaury Nolasco, Amy Smart, Randy Jackson, James Cann, James Van Der Beek, Marcia Cross, Soleil Moon Frye, Kate Walsh, Melissa George, Brad Rowe, Jennifer Hudson, Balthazar Getty, Brett Ratner, Justin Chambers, Maria Menounos, Ming Na) from the event are after the jump.

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