George may be dead, Meredith may be fading into the background and Izzie may be getting fired, but "Grey's Anatomy" is not downsizing.

ABC confirms that former '24' & 'Lipstick Jungle' star Kim Raver has been cast as a recurring character, scheduled to join the series in the November 12th episode.

Though the network is not commenting on story lines, EW.com reports that Raver will play someone who may pose a threat to the blossoming Owen-Cristina relationship.

Raver is no stranger to working with "Grey's" creator Shonda Rhimes. The actress starred in Rhimes' "Inside The Box" pilot for ABC earlier this year.

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