Sean Murray, Wilmer Valderrama and Katrina Law will return in season 21 of NCIS. From the cast to the plot and release date, here's what you need to know about the new series.

Lilan Bowden has appeared on the NCIS cast as Robin Knight. Pic credit: ©ImageCollect.com/Xavier Collin/Image Press Agency The NCIS cast may soon see much more of ...

Diona Reasonover as Forensic Scientist Kasie Hines on the NCIS cast. Pic credit: Sonja Flemming/CBS A new NCIS episode debuts on Monday night and revolves around a group of friends for one of the ...

The drama is cranked up when Mike suffers a great loss despite his heroic intentions. Read the NCIS: Origins Season 1 Episode ...

NCIS: Origins gives us a rare look back to a time before NCIS with Mike. The flashback to his time in the Marines gives us ...

The second season of NCIS Sydney features the return of Olivia Swann as Captain Michelle Mackey and Todd Lasance as Sergeant Jim Dempsey. To add to the cast list, the rest of the team is also back ...