Donald Bellisario's alleged feud with Mark Harmon reportedly contributed to his exit from NCIS after four seasons.

Despite leaving the show to tackle a fresh challenge, Mark Harmon is apparently not against the idea of returning to the main ...

Mark Harmon may not have much of an acting role in NCIS: ORIGINS, but he is still very much involved. He reflected on his ...

Kyle Schmid has fully embraced his role as "hippie cowboy" Mike Franks on NCIS: Origins, thanks to advice from both Mark ...

NCIS might have shown a strict Leroy Gibbs while he was on the job and in his relationships with the other special agents ...

CBS rookie show NCIS: ORIGINS just secured a full-season order. “NCIS: ORIGINS is currently averaging 6.2 million total ...

Except, of course, he did help cast it. Related: Mark Harmon on Why Austin Stowell Is the Perfect Young Leroy Jethro Gibbs ...

He can't help himself! As of now, Harmon has only appeared in the first episode of Origins, but he could show up in more, ...

Gibbs goes undercover in a tux with Lala as NIS works the case of a dead Navy seaman. Check out the NCIS: Origins Season 1 Episode 6 Spoilers!