Four years after retiring from NCIS, Mark Harmon is ready to return to active duty, an insider reveals. The actor, 74, played ...

Harmon’s return to the NCIS universe comes years after his exit.

NCIS: Origins co-creator David J. North has revealed that Mark Harmon does not recall a key detail long associated with the ...

In season 19, episode 4, the character solved a high-profile case in Alaska and made the decision to remain there rather than ...

David J. North jokes to EW that Harmon's slip on the set of the recent "NCIS" crossover is "gonna destroy some fans' hearts." ...

Watch the extended promo for the first crossover event between NCIS and NCIS: Origins, featuring Mark Harmon's return as ...

Mark Harmon hints at ending retirement, planning for more big-screen roles after NCIS return, saying he still has 'gas left ...

Mark Harmon makes a special return as Gibbs for the NCIS and NCIS: Origins crossover event tonight. The two-hour crossover ...

Mark Harmon will reprise his “NCIS” role of Gibbs this week, a return that the actor said brought him back to the early days of the franchise ...

NCIS alum Mark Harmon opened up about returning to his Special Agent Leroy Jethro Gibbs character on NCIS: Origins ...

Mark Harmon’s Leroy Jethro Gibbs left his NCIS job to settle in Alaskan solitude while narrating his backstory on NCIS: ...

NCIS: Origins co-creator David J. North has revealed that Mark Harmon does not recall a key detail long associated with the ...