Mark Harmon Returning to "NCIS: Origins" as Gibbs for Season 3
by Katie Campione
June 30, 2026


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

He will appear in all episodes of Season 3 as part of a present-day mystery tied to his ‘90s Camp Pendleton days.

https://deadline.com/2026/06/mark-harmon-ncis-origins-season-3-cast-1236971337/





Eric Christian Olsen Joins "NCIS: Origins" as Executive Producer
by Nellie Andreeva
June 30, 2026


An "NCIS" universe fan favorite actor is rejoining the franchise, this time behind the scenes. "NCIS: Los Angeles" alum Eric Christian Olsen will serve as an executive producer on the upcoming third season of CBS’ "NCIS: Origins" under his banner Cloud Nine Productions.

Olsen has joined the prequel series’ original executive producers David J. North, who serves as showrunner next season, Mark Harmon and Sean Harmon as well as Michele Greco who has been promoted from co-executive producer.

https://deadline.com/2026/06/eric-christian-olsen-ncis-origins-executive-producer-1236969853/