Harmon will return in the flesh for a special crossover event on Tuesday, Nov. 11. For one night only, “NCIS” and “NCIS: ...

Mark Harmon wore a special detail in a glimpse of his return as Special Agent Leroy Jethro Gibbs for NCIS: Origins ...

After four years away, the beloved agent is finally returning to the field for a special crossover event that promises major ...

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

NCIS defied the odds and continues to thrive in the streaming era, providing a roadmap for legacy TV shows to remain relevant ...

CBS announced that Mark Harmon will reprise his role as Leroy Jethro Gibbs in an upcoming guest appearance on 'NCIS' and ...

NCIS' star Mark Harmon is reprising the role of Leroy Jethro Gibbs in an upcoming Veteran's day crossover episode of 'NCIS: ...

"NCIS" legend Mark Harmon is to guest star as his character, Leroy Jethro Gibbs, on the prequel, "NCIS: Origins," next month.

NCIS” legend Mark Harmon is bringing his OG Leroy Jethro Gibbs character to the prequel series “NCIS: Origins,” and he’s not ...

Mark Harmon returns as Leroy Jethro Gibbs in the highly anticipated NCIS and NCIS: Origins crossover event airing November 11, 2025. The two-hour special connects Gibbs’ past and present as both teams ...

Mark Harmon will appear as Gibbs ("and he's no longer alone!") in the Nov. 11 episode of "NCIS: Origins," part of a crossover ...

Olivia Swann and Todd Lasance, stars of "NCIS; Sydney," share insight into how their characters, and the performances behind them, change in the highly-anticipated third season of the TV drama.