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

Season 4 of NCIS could have been the end of the road for Mark Harmon, the beloved actor who plays Leroy Jethro Gibbs. Despite ...

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

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 ...

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

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 ...