Fans will finally be able to see Mark Harmon's grand return to the part of Leroy Jethro Gibbs in an ambitious crossover ...

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

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

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

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

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

Mark Harmon will return to NCIS as Gibbs in CBS’ epic NCIS x NCIS: Origins crossover event episodes. Here’s what we know.

"NCIS: Origins" will catch up with present-day Leroy Jethro Gibbs as part of its big crossover with the flagship series in ...

Mark Harmon is making a comeback to the NCIS franchise. CBS announced that the actor will return as Leroy Jethro Gibbs for the upcoming crossover event between NCIS and NCIS: Origins. Harmon starred ...