Mark Harmon's son, Sean, portrayed a younger version of his father's "NCIS" character several times, so why didn't he reprise the role for "NCIS: Origins"?

Mark Harmon will reprise his "NCIS" role of Leroy Jethro Gibbs this week, a return that the TV legend said brought him back to the "tough" early days of the CBS franchise. Tuesday's crossover event ...

"NCIS" legend Mark Harmon is bringing his OG Leroy Jethro Gibbs character to the prequel series "NCIS: Origins," and he's not coming alone. Harmon, 74, will make a rare guest appearance on "Origins" ...

Article Summary Mark Harmon makes a special return as Gibbs for the NCIS and NCIS: Origins crossover event tonight. The two-hour crossover spans 30 years and features timeslot swaps for NCIS and NCIS: ...

How’s Gibbs doing in the Alaskan wilderness? Well, NCIS: Origins is going to give us that answer, with Mark Harmon returning onscreen for the prequel’s half of the crossover with the mothership airing ...

Harmon, who played Gibbs for 18 seasons on “NCIS,” is the narrator of “NCIS: Origins,” but a Veteran’s Day crossover event will mark his first on-screen appearance since the prequel series’ 2024 pilot ...

When Mark Harmon initially read the script for the long-running drama series "NCIS," he was immediately drawn in, and the ...

Now that we’re going to see Mark Harmon onscreen again as Leroy Jethro Gibbs, what are the chances he reprises the role again in the future? He’s appearing in the Tuesday, November 11, NCIS and NCIS: ...