Jessica Lucas by Jesse Grant/WireImage.com Jessica Lucas by Jesse Grant/WireImage.com

Twentysomething Jessica Lucas, whose credits include TV's Life As We Know It and such big-screen fare as She's the Man, The Covenant and J.J. Abrams' mystery monster movie, has been cast on CBS' CSI: Crime Scene Investigation in the recurring role of "a vivacious analyst," says the Hollywood Reporter.

The new character, which was first reported on by Ausiello, is said to be a new addition to Grissom's team, and not a replacement per se for Jorja Fox's perhaps-ill-fated Sara.