Mark Harmon got a lot of mileage out of playing Leroy Jethro Gibbs in CBS’ hit series NCIS, but why did he leave the show? Harmon played the lead role, who oversees the NCIS team, for 18 seasons.

Mark Harmon has become synonymous with Leroy Jethro Gibbs after playing him on NCIS for 19 seasons, so it's hard to imagine ...

A heartfelt tribute to David McCallum, a surprise return from Michael Weatherly, and why Mark Harmon was missing from NCIS.

To the surprise of absolutely nobody, NCIS will be back on CBS for Season 23.

According to Pam, the pair prefer to keep things low-key. During an interview on Craig Ferguson's show, the mom-of-two ...

Mark Harmon expected NCIS to be dark and gritty — then it became a quippy crime procedural. Not what he signed up for, but it worked.

Mark Harmon has grown to become a TV veteran thanks to his role on NCIS as agent Leroy Jethro Gibbs, a character he portrayed for almost 20 years before his untimely departure in 2021. The actor ...

Origins has been taking fans back to the ‘90s pre-NCIS to follow a young Leroy Jethro Gibbs, played by Austin Stowell. The show, which is now airing amid the 2025 TV schedule, has already offered ...

Narrated by “NCIS” star Mark Harmon, “NCIS: Origins” takes fans back to Camp Pendleton 1991, where a young Leroy Jethro Gibbs is building his special agent career under the well ...