Recalling a story Carroll told last year about when Mark Harmon pranked him in the middle of shooting one of his earliest ...

However, despite his retirement, fans were surprised to see Harmon’s name remain in the NCIS opening credits for the rest of Season 19. While there was no official explanation from the network for ...

Origins has introduced a few new faces to the NCIS franchise, some of its most important players debuted first in the ...

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

In fact, Harmon was very close to walking away from the show a mere four seasons into its run. According to TV Guide's ...

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 ...

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

Mark Harmon played Leroy Jethro Gibbs for years on "NCIS," and now Austin Stowell has taken on the role for "NCIS: Origins." But how old is Gibbs in both shows?

Mark Harmon hinted at his NCIS exit two years before leaving, proving his departure was no surprise. Was it always the plan?

NCIS Origins will delve into the backstory of veteran Agent Leroy Gibbs when he first joined Camp Pendleton in the 1990s.