A Gossip gal will have the NCIS: Los Angeles team all abuzz when Michelle Trachtenberg guest-stars in a holiday episode of the CBS drama.

TVLine has learned that in NCIS: LA‘s Dec. 17 outing, Trachtenberg will play Lily Montgomery, a smart, witty, charming and physically capable environmentalist-slash-private chef. When a scary home invasion turns Lily’s life upside down, she does her best to keep a brave face, despite dangerous and uncertain circumstances.

“We’re very excited to have Michelle guest on the show,” says NCIS: LA showrunner Shane Brennan. “It’s a very intense episode which pairs Michelle with Callen and Sam (played by Chris O’Donnell and LL Cool J), in what is probably one of our biggest action shows so far this season.”

Trachtenberg this past weekend turned in an acclaimed performance in the record-breaking National Geographic Channel TV-movie Killing Kennedy, as Lee Harvey Oswald’s wife. Her previous TV credits include runs on Weeds, Six Feet Under and Buffy the Vampire Slayer, and a memorable January 2013 episode of Criminal Minds.

Source