Credit: Frazer Harrison/Getty Images Photo: Adam Busch

New Grey's cast member alert! Adam Busch, who played Warren on Buffy the Vampire Slayer (you know, the one who got straight up skinned by Willow), is about to join the Seattle Grace squad at the end of January.

He will play a first-year resident and will be shadowing Cristina, which means (yes!) Cristina is back in action and ready to work for reals. We can't wait to see if he'll inspire or annoy our beloved Cristina. But we think we can guess...

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