Rumor has it NCIS star Mark Harmon used his clout to get creator Donald P. Bellisario fired because they were feuding, but ...

Mark Harmon's son, Sean, portrayed a younger version of his father's "NCIS" character several times, so why didn't he reprise ...

A fter working together on the medical drama Chicago Hope, Rocky Carroll and Mark Harmon reunited on NCIS in 2008 when the ...

NCIS star Cote de Pablo found out about Mark Harmon's opinion of sick days the hard way, after a doctor told her to stay home ...

NCIS star Mark Harmon very nearly walked away from the show after season 4 due to a behind-the-scenes clash with one of his ...

Mark Harmon has become synonymous with Leroy Jethro Gibbs after playing him on NCIS for 19 seasons, so it's hard to imagine ...

Mark Harmon played Leroy Jethro Gibbs for years on "NCIS," and now Austin Stowell has taken on the role for "NCIS: Origins." ...

A heartfelt tribute to David McCallum, a surprise return from Michael Weatherly, and why Mark Harmon was missing from NCIS.

Many actors have walked through the revolving door of the NCIS Major Case Response Team's Navy Yard headquarters. Some of ...