The cast of NCIS: Los Angeles gathered in the CBS studios this week for a slew of promotional photos.

A spin-off of the wildly popular NCIS, this series will debut in the fall. All pictured below, it stars LL Cool J, Chris O'Donnell, Linda Hunt and Rocky Carroll.

Click on each promo pic to enlarge it...

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