Web Reference: Nov 10, 2025 · Harmon says the invite came from NCIS boss David J. North and producer Gina Lucita Monreal, who pitched him on a fresh angle for Gibbs. He liked it enough to step back in front of the camera — his first on-screen Gibbs appearance since Season 19, Episode 4 ('Great Wide Open') in 2021. Nov 11, 2025 · Mark Harmon returns to NCIS: Origins to reprise his role as Leroy Jethro Gibbs, the iconic TV character he played for 18 seasons on NCIS, when the two series team up for a special crossover event... NCIS alum Mark Harmon is set to return to the long-running CBS series for a special crossover event between the procedural drama and its spinoff, NCIS: Origins, airing Nov. 11.
YouTube Excerpt: After 18 seasons as Leroy Jethro Gibbs —
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Mark Harmon Steps Back Into - Latest Information & Updates 2026 Information & Biography
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Last Updated: April 2, 2026
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