Harmon will return in the flesh for a special crossover event on Tuesday, Nov. 11. For one night only, “NCIS” and “NCIS: Origins” are swapping time slots; the spinoff will air first at 8 p.m. ET, followed by the original series.

David J. North: “It's not like any piece of wardrobe. It's definitely cherished, but they shoot the original NCIS up in Valencia, California, and we reached out to them and asked for the hat, and that's how that's how we had it. But yeah, it was a really cool thing and Adam was so excited.”

"Great News" and "Mixology" alum Adam Campbell told UPI he was honored to reprise his "NCIS" character on this week's episode of the show's "Origins" prequel.

Mark Harmon, who spent 18 seasons on "NCIS," is reprising his role as special agent Leroy Jethro Gibbs for a crossover event.

Warning: SPOILERS for the NCIS: Sydney episode “Lost in Translation” are ahead!

NCIS: Sydney Season 3 Episode 3, titled “Lost in Translation”, premiered on October 28, 2025. The episode opens with Blue returning to NCIS after her leave, but the office feels different now.

Origins would deliver its own tribute to fan-favorite Donald “Ducky” Mallard, it was hard to know what to expect from this venture or whether Adam Campbell could reprise the role in a way that aligned with this spinoff.

The team’s hunt for a high-value U.S. target accused of murdering an Australian soldier takes an unexpected turn when the suspect claims to have evidence of a war crime. WBZ's Breana Pitts spoke with the shows stars about filming the epic episode.