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Mark Harmon will make a special guest appearance as Leroy Jethro Gibbs, the iconic TV character he p...
- Funny How Time Slips Away
- NCISO_205_SG_0010b.JPG
- Mark Harmon will make a special guest appearance as Leroy Jethro Gibbs, the iconic TV character he played for 18 seasons on NCIS, on prequel series NCIS: ORIGINS during the first crossover event between the two hit dramas, Tuesday, Nov. 11 on the CBS Television Network, and streaming on Paramount+ (live and on demand for Paramount+ Premium plan subscribers, or on demand for Paramount+ Essential subscribers the day after the episode airs)*.
Pictured: Mark Harmon as Leroy Jethro Gibbs.
Photo: CBS ©2025 CBS Broadcasting, Inc. All Rights Reserved. Highest quality screengrab available.
