Origins, and he won't be alone in Alaska, prompting a fan theory about Lala Dominguez to circle the development.

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

Mark Harmon is set to return to the NCIS universe in a special crossover event uniting NCIS and NCIS: Origins. The upcoming ...

Harmon, 74, will make a rare guest appearance on "Origins" as Gibbs, the character he played for 18 "NCIS" seasons, during ...

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

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

In the first look at Harmon’s return, his present-day version of Gibbs is seen pouring himself a drink. This marks a rare ...

Mark Harmon is returning to the NCIS universe and he won't be alone! CBS and the beloved actor dropped all the details.

Mark Harmon will reprise his iconic Leroy Jethro Gibbs role in the flagship series. His return will be featured in a special (and first-ever) crossover event between NCIS: Origins Season 2 and the ...

Mark Harmon is making an on-screen return to the NCIS universe. Harmon will guest star in an episode of NCIS: Origins on Nov.

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