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: ...

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

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

The veteran actor, 74, will be guest starring in the first-ever NCIS and NCIS: Origins crossover event on Tuesday, Nov. 11.

The statement continued, “Well, on Nov. 11, we’re so excited to announce that Mark Harmon will return as Leroy Jethro Gibbs ...

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

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

Good news for NCIS fans! Mark Harmon will reprise his iconic Leroy Jethro Gibbs role in the flagship series. His return will ...