Mark Harmon is “bored” with his semi-retirement, a source tells Examiner. The actor, 74, recently guest-starred on a ...

The upcoming NCIS and NCIS: Origins crossover brings Mark Harmon back onscreen as Leroy Jethro Gibbs, though his presence ...

Mark Harmon may be making a return to the acting world. A new article from the National Examiner says the actor is “bored” with his semi-retirement, which is why he is soon to appear on a new episode ...

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

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

I'm not sure just how many NCIS fans expected Harmon to reprise his famous character, during which he'll appear in the Origins hour of the crossover that airs on Veterans Day. In a press release, ...

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

We'll get to see more of modern-day Leroy Jethro Gibbs in the 'NCIS' prequel series — and he's no longer alone!

Mark Harmon will make a guest appearance asa Leroy Jethro Gibbs in the November 11 episode of 'NCIS: Origins.' ...

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

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