Peter MacNicol to Appear on Multiple Grey's Anatomy Episodes

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Former Chicago Hope, Ally McBeal, Numb3rs and 24 star Peter MacNicol has joined the cast of Grey's Anatomy for a multi-episode arc this season, TV Guide reports.

The actor will play Dr. Stark, a pediatrics attending who will be working closely with Alex (Justin Chambers), and presumably Arizona (Jessica Capshaw) as well.

MacNicol will pop in during November sweeps for at least two episodes, so you know the role is significant. Any thoughts on what the upcoming plot line might be?

MacNicol Peter

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Grey's Anatomy Quotes

[narrating] "At the end of the day, when it comes down to it, all we really want is to be close to somebody. So this thing where we all keep our distance and pretend not to care about each other, it's usually a load of bull. So we pick and choose who we want to remain close to, and once we've chosen those people, we tend to stick close by. No matter how much we hurt them. The people that are still with you at the end of the day, those are the ones worth keeping. And sure, sometimes close can be too close. But sometimes, that invasion of personal space, it can be exactly what you need."

MEREDITH

Did you say it? 'I love you. I don't ever want to live without you. You changed my life.' Did you say it? Make a plan. Set a goal. Work toward it, but every now and then, look around; Drink it in 'cause this is it. It might all be gone tomorrow."

Meredith (closing voiceover)