Mark Harmon holds Jethro Gibbs close to his heart. After 18 years of playing the special agent on “NCIS,” Harmon exited the show as a series regular in 2021 but remained a series regular.

Mark Harmon is an important part of NCIS: Origins. Pic credit: CBS Mark Harmon remains an important component of the NCIS Universe, even though he is no longer starring on the flagship show.

Austin Stowell plays Leroy Jethro Gibbs, the beloved role created by Mark Harmon on 'NCIS', on CBS' new spin-off drama When ...

Harmon confirmed that many actors tried out for ... though I guess he has his own spinoff on the way with NCIS: Tony & Ziva. I don't just go to work for me, I go to work with everyone.

After all, these were high stakes seeking the coveted role of young Leroy Jethro Gibbs, famously embodied by Mark Harmon for 19 TV glory-filled seasons. Gibbs is the guy in the "NCIS" universe ...

NCIS fans know the duo well from the parent show, where their older version solved many cases. Mark Harmon played Gibbs on NCIS; Austin Stowell now plays the younger Gibbs on NCIS: Origins.

Warning: SPOILERS for the NCIS: Origins two-part premiere “Enter Sandman” are ahead! When NCIS: Origins was announced back in January, it was mentioned that Mark Harmon, who played Leroy ...

Three years after his departure, Mark Harmon is back on NCIS — sort of. Tomorrow, Monday, October 14, NCIS fans will finally get to see NCIS: Origins, which tells the origin story of the West ...

Mark Harmon, widely known for playing Special Agent Leroy Jethro Gibbs on the hit CBS drama "NCIS," is stepping behind the camera as the executive producer and narrator of a new spin-off prequel ...

Mark Harmon is taking a step behind the camera for the upcoming NCIS prequel. "I'm there to help and to talk to them or to tell them what I remember from being in this for a while.

Luckily, in Harmon, he had a mentor with a lot of experience. Ahead of the Monday, Oct. 14 premiere, PEOPLE caught up with the duo for a sneak peek at NCIS: Origins. PEOPLE: Mark, what do you ...