Underrated TV stars of 2011: Zap2it's Year in Review

(NBC)
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Lauren Cohan, 'The Vampire Diaries,' 'Chuck' and 'The Walking Dead'

You know her as: Ill-fated vampire Rose on "The Vampire Diaries," heiress to evil Vivian Volkoff on "Chuck" and zombie apocalypse survivor Maggie Greene on "The Walking Dead."

Why we like her: Cohan has gotten a lot of work this past year, and it's easy to see why. Even when being secretive, her characters manage to be straightforward without being hard. We bought why Damon would want to give her a last few perfect moments before staking her on "TVD" and how she could lose her way out of longing for her unhinged father's love on "Chuck." Yet, as one Zap2it staff member decribed her "Walking Dead" character: She "has a 'the world's ending so lets have sex' attitude. Refreshing."

Where else you've seen her: A cat thief specializing in supernatural objects on "Supernatural."

-- Brill Bundy, Zap2it