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

Mark Harmon, who played the 'NCIS' lead Leroy Jethro Gibbs for 18 years, is returning for an appearance on ‘NCIS: Origins’ ...

While it was previously announced that Harmon would return as older Gibbs to narrate the series, NCIS: Origins co-showrunner ...

NCIS: Origins will follow a young Leroy Jethro Gibbs and tell new stories about the character made famous by Mark Harmon.

And so far, they’re all doing just fine. NCIS: Origins’ arrival comes three years after Mark Harmon departed NCIS in Season 19’s fourth episode, titled “Great Wide Open.” Having already ...

Mark Harmon, born on Sept. 2, 1951, is no doubt the most well-known NCIS agent on television—and perhaps even off-screen. But before he was taking down bad guys, Harmon was a budding football star.

The actor played Leroy Jethro Gibbs on 'NCIS' from 2003 to 2021 Mark Harmon will be on hand to help introduce Leroy Jethro Gibbs' backstory. The actor, 73, who portrayed Gibbs on NCIS from 2003 to ...

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The protagonist of 19 seasons of "NCIS" returns to his character's origin story. The NCIS-verse has expanded, and Mark Harmon is still along for the ride. CBS announced in January that a sixth spinoff ...