Grey's Anatomy's Alex is about to have some competition.
True Blood's Vedette Lim has signed on as Dr. Polly Preston, who arrives at Seattle Grace with a pediatric fellowship, TVGuide.com has learned exclusively. Arizona (Jessica Capshaw) will take a liking to Polly, so much so that she'll boot Alex (Justin Chambers) from her cases.
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Lim, who portrayed Tara's lesbian lover on the fourth season of the HBO series, will first appear in Episode 8.
Grey's Anatomy airs Thursdays at 9/8c on ABC.