Mark Harmon to Make Guest Appearance
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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.
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Adam Campbell Teases ‘NCIS: Origins’ Easter Eggs, Ducky’s Future on the Show After David McCallum Tribute
Adam Campbell’s return to the NCIS universe as young Donald “Ducky” Mallard on NCIS: Origins will pay homage to the OG character — and drop a few easter eggs for fans of his and Gibbs’ friendship. “This episode is about the rekindling of old friendships between Gibbs and Ducky,
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‘NCIS: Origins’ Adam Campbell on Returning for the Episode Honoring Dr. Donald ‘Ducky’ Mallard (Exclusive)
One thing that NCIS: Origins has been excellent at accomplishing is staying true to the history of Leroy Jethro Gibbs’ past, and tonight, they continue the trend with a story that reunites the young Gibbs ( Austin Stowell) with Dr. Donald “Ducky” Mallard at NIS headquarters at Camp Pendleton, CA.
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.
Warning: SPOILERS for the NCIS: Sydney episode “Lost in Translation” are ahead!
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"I was a little bit nervous": Adam Campbell reflects on honoring David McCallum and reviving Ducky’s legacy on NCIS: Origins
Adam Campbell felt anxious while stepping into David McCallum’s iconic role as Ducky in the episode that pays tribute to the late actor on NCIS: Origins season 2
In recent years, the couple worked together on 2023's Night Shift, and in February 2025, Bowles was cast as Fischler's on-screen wife in NCIS: Origins, per TV Line. Season 1, episode 17, which airs on April 21, will mark her first appearance on the show.