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’ ...

Origins, we're gathering everything we know about the series that will give fans a glimpse into how Jethro became the Gibbs we love.

NCIS: Origins explores the backstory of young Leroy Jethro Gibbs, who will be played by Austin Stowell. Will Mark Harmon, who ...

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

The NCIS-verse has expanded, and Mark Harmon is still along for the ride. CBS announced in January that a sixth spinoff ...

Broadcast networks are somewhat back to normal this fall after strikes delayed last year's debuts to mid-season. Among series ...

It was playing the younger version of [Mark Harmon's Leroy Jethro Gibbs ... "Enter Sandman" -- Coverage of the CBS Original Series NCIS: ORIGINS, scheduled to air on the CBS Television Network.

When CBS's NCIS: Origins premieres on Monday, October 14, viewers are going to have two Leroy Gibbs on their hands. Of course, Austin Stowell is playing the younger version of the popular character ...

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

It’s not supposed to be about old Leroy Gibbs — this is about his younger self coming up in the Naval Criminal Investigative ...