Where you've seen her: She made a name for herself as Orange County socialite Summer Roberts on "The O.C." and she's also the infamous roommate of the mysterious mother on "How I Met Your Mother." But you may have also seen her in commercials for Magnum ice cream and hanging out with Chanel's Karl Lagerfeld. Character on this show: Bilson will play Zoe Hart, a New York City doctor who inherits a medical practice in a small Southern town filled with eccentric locals. Character similarities: None, really. Hart is a New Yorker, not a beach girl, who finds herself in a fish-out-of-water situation when she moves down South. However, the dramedy reunites her with "O.C." producer Josh Schwartz, who is also behind the CW phenoms "90210" and "Gossip Girl," both known for their cattiness intermixed with banter and a few good laughs. Watch a preview here.
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