Warning: SPOILERS for the NCIS episode “Humbug” are ahead ... now be streamed with a Paramount subscription) that he has a secret girlfriend with whom he was going to celebrate Christmas.

He may be gone, but Special Agent Leroy Jethro Gibbs's rules live on. Mark Harmon, who played Gibbs, was one of the last original cast members left on NCIS, having been on the show since its first ...

McGee digs deep into Deputy Director Laroche’s secrets on NCIS Season 22 Episode 19, but is he chasing a true villain — or getting played?

Why is the CBS procedural the most-watched show on television? What makes NCIS so popular? NCIS – defying all television norms as its rankings increase over the years – has aged like a fine ...

But will viewers ever meet him — and will the rest of her team learn her secret? Swann exclusively told Us what to expect from the rest of the season below: Throughout season 1, the NCIS and AFP ...

Meanwhile, NCIS: Sydney kicked off its second season with explosive mysteries and major secrets, including a hidden chapter in Agent Mackey’s life and a shadowy villain shaking up the team.

Carroll also tells PEOPLE how the cast of 'NCIS' reacted when learning they had just filmed their 1000th episode Robert Voets/CBS via Getty Rocky Carroll says filming NCIS' 1000th episode was just ...

NCIS Brought In One Of My Favorite Recurring ... Including Which Characters Are ‘In So Much Trouble’ And ‘Carrying’ Secrets After Chicago P.D. Shut Down The Intelligence Unit, The EP's ...