The long-time franchise lead also narrates the prequel series and is an executive producer.

Origins star Austin Stowell and NCIS star Wilmer Valderrama to discuss the first-ever prequel crossover event in Episode 5 of both series, ...

NCIS: Origins has set Mark Harmon to return as Special Agent Leroy Jethro Gibbs for season three.

Mark Harmon is coming back as Gibbs through all of Season 3 of "NCIS: Origins." How will that work? "You'll see," Harmon says ...

Mark Harmon is returning to NCIS: Origins for a season-long arc.

NCIS fans were treated to two Gibbs onscreen in the Origins half of the two-part crossover earlier in 2025: Mark Harmon, who has been narrating the prequel as his present-day version lives in Alaska, ...

Mark Harmon last appeared as the character in a November 2025 episode of the prequel series ...

NCIS legend Mark Harmon is returning to the franchise five years after his exit from the long-running show. The actor is all ...

Mark Harmon will reprise his role full time as Leroy Jethro Gibbs in the popular NCIS franchise during the 2026-27 season.

"NCIS: Origins" is bringing Mark Harmon back in front of the camera for a big Season 3 mystery. The actor and executive producer, who has appeared on two episodes of the CBS prequel series and ...

We're not burying the lead here, because Mark Harmon is returning to NCIS: Origins, and we're hyped about it! Here are the ...

Origins may have just dropped its biggest news yet: Mark Harmon is appearing onscreen in a major way in Season 3. CBS has announced that Harmon ...