Following the news that Chris O'Donnell and LL Cool J will likely lead the upcoming NCIS spin-off, CBS has announced three more actors for the series.

• Louise Lombard (pictured), who portrayed CSI's Sofia Curtis for three seasons, will take on the show's female lead: Clara, a former major in the military police.
• Peter Cambor will play Nate, an operational psychologist.
• Daniela Ruah will play Kensi, a young investigator specializing in forensics and criminology.

The series will launch via an episode of the original NCIS later this spring. It will air in its own timeslot in the fall.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.