For the record, the “one about a knife” is Rule 9: "Never go anywhere without a knife." You probably won't need one to watch ...

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

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

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

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

Mark Harmon says fans will be “surprised” by his upcoming appearance in the upcoming NCIS and NCIS: ORIGINS crossover.

NCIS: Origins Season 2 Episode 7 will air on December 2 on CBS. Fans of the prequel show can mark their calendars for this ...

The upcoming NCIS and NCIS: Origins crossover brings Mark Harmon back onscreen as Leroy Jethro Gibbs, though his presence remains a constant part of the prequel. He serves as an executive producer and ...

Mark Harmon will reprise his role as Leroy Jethro Gibbs in the November 11 NCIS and NCIS: Origins crossover, appearing onscreen in the prequel’s first hour. Harmon, who remains an executive producer ...

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

Harmon left NCIS on good and peaceful terms. Fans remember his character wishing his teammates farewell while he decided to enjoy the quiet life. And Harmon felt it couldn’t have been a more fitting ...

NCIS: Origins' brought in Robyn Lively to play a key role after she previously portrayed a different character in the 'NCIS' ...