NCIS has found its Tess. 24 alumna Sarah Clarke has been cast in the sought-after role, guest starring in the final two episodes of the veteran series’ current season with an option to become a new regular in the upcoming Season 14.

Clarke’s Tess Monroe is an FBI Special Agent who has recently transferred to D.C. from New York City. She’s quick-witted, tough and shrewd. A multiple divorcée who’s as sexy as she is strong, Tess has no kids so she views her fellow agents as family. Beneath a no-nonsense shell, Tess has a big heart. She believes in honor and justice and doing what’s right. And she’ll fight to protect those values, and her team, with fierce determination and a tinge of sarcasm along the way.

“We feel so fortunate to have Sarah Clarke joining us to play Tess,” said NCIS executive producer/showrunner Gary Glasberg. “I’ve been a fan of her’s going back to 24 and more recently Bosch. She’s a gifted actress, a total pro, and we can’t wait to introduce her to our NCIS family and have some fun.”

Clarke, best known for her roles on the Fox series 24 and in the Twilight movie franchise, recently co-starred on Bosch. She was a regular on the breakout Amazon series’ first two seasons, playing Harry Bosch’s (Titus Welliver) ex-wife Eleanor. As the focus of the series is shifting away from family to the police department, Clarke will no longer will be a regular but I hear she has a carve-out in her NCIS deal so she can do three episodes of Bosch‘s upcoming season, reprising her role.

Clarke is repped by Gersh and Michael Levine of Levine Management.

NCIS, the most watched drama series in the U.S. and worldwide with 55 million viewers globally, was recently renewed for two more seasons, the show’s 14 and 15. This spring, the series will see off original cast member Michael Weatherly.