Mark Harmon once discussed the likelihood of appearing in a hypothetical series finale for the long-running ‘NCIS’.

Here’s everything we know about the upcoming prequel, NCIS: Origins. NCIS: Origins is a series that takes place in the 90s and follows Leroy Jethro Gibbs as he starts out as a rookie NCIS agent at ...

NCIS: Origins has been confirmed to feature an appearance from Mark Harmon as Leroy Jethro Gibbs, with fans set to see the ...

Mark Harmon is finally confirmed to return as Leroy Jethro Gibbs more than three years after his last appearance as the ...

Mark Harmon is making headlines as he will make a surprising return to the NCIS franchise in the upcoming prequel, NCIS: ...

CBS announced in January that a sixth spinoff series of the long-running military-police procedural was on its way, and that ...

It was playing the younger version of [Mark Harmon's Leroy Jethro Gibbs]. One was via Zoom, and this audition for suits was actually in person, which I remember being incredibly excited about because ...

Even though Harmon will only serve as his character's narrator, he will actually be making a brief appearance in the two-hour ...

Mark Harmon is set to make his first onscreen appearance as NCIS fan-favorite character Leroy Jethro Gibbs in three years.

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Origins cast and character guide lists all the stars joining the new NCIS spinoff series based on a young Agent Gibbs.