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 ...

He revealed that although the experience "changed [his] direction," it was still "humiliating" for his teenage self ...

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

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

The entire scope of Mark Harmon’s role in NCIS: Origins is still under mystery. Besides his role as a narrator who gives the ...

For someone who said three years ago he was retiring, Mark's still very immersed in the ... He can't help himself! As of now, Harmon has only appeared in the first episode of Origins, but he ...

NCIS fans know the duo well from the parent show, where their older version solved many cases. Mark Harmon played Gibbs on NCIS; Austin Stowell now plays the younger Gibbs on NCIS: Origins.

Mark Harmon is an important part of NCIS: Origins. Pic credit: CBS Mark Harmon remains an important component of the NCIS Universe, even though he is no longer starring on the flagship show.

Mark Harmon‘s Leroy Jethro Gibbs anchored NCIS for 18 years. Now, as the executive producer and narrator of its prequel series NCIS: Origins, he just could sense that Austin Stowell was fit to ...

After Mark Harmon left NCIS at the beginning of Season 19, the actor finally returned to the franchise for the prequel series NCIS: Origins (which is airing now on the 2024 TV schedule).