NCIS: LA Spoilers: Gossip Girl's Michelle Trachtenberg To Guest Star

NCIS: LA Spoilers: <em>Gossip Girl's</em> Michelle Trachtenberg To Guest Star

0,1Michelle_TrachtenbergGossip Girl villain Michelle Trachtenberg is LA bound.

The actress, who recently appeared on Killing Kennedy, has nabbed a guest starring role in an upcoming episode of NCIS: Los Angeles' fifth season.

Per TV Guide, Trachtenberg will play Lily, a charming and physically capable environmentalist and private chef. When a scary home invasion turns her life upside down, she does her best to show a brave face, despite dangerous and uncertain circumstances.

The actress will appear on the procedural's holiday-themed episode slated to air Tuesday, Dec. 17 at 9/8c on CBS.