Before Mark met and fell for Pam in the mid '80s, he had worked on a huge property transformation. According to the NCIS star ...

Sean Harmon, son of Mark Harmon, came up with the concept for NCIS: Origins while playing young Gibbs. Now, the prequel ...

Throughout Mark Harmon’s run on the first 19 seasons of NCIS, the show would occasionally throw out a Gibbs Rule. Those are ...

The dramatic clash between creative control and business interests that nearly derailed NCIS’ spinoff success.

Rule 4 — “The best way to keep a secret: Keep it to yourself. Second best: Tell one person—if you must. There is no third ...

David Osmond spoke with "NCIS" Star Mark Harmon and real-life retired NCIS Special Agent Leon Carroll Jr. about their latest ...

I would say that at this point, this pertains more to Gibbs than to me, that I’ve got some very trusty voices in my head right now — one of them being Mark Harmon, who’s been a sage to me ...

“My wife believed we all should have a code to live by, a set of rules,” Mark Harmon says in a voiceover on NCIS: Origins. “And I believed in her. So for years, I wrote my own rules down on ...