Mark Harmon Returns as Gibbs in NCIS: Origins Season 3

Mark Harmon is set to return to his iconic role as Leroy Jethro Gibbs in the upcoming third season of the "NCIS" prequel series, "NCIS: Origins." Variety has learned that Harmon will appear in every episode of Season 3, reprising his character for a season-long story arc. This marks a significant return for the actor who originated the role and led the flagship "NCIS" series for many years.

Harmon's involvement in "NCIS: Origins" will see him not only acting but also serving as an executive producer for the show. The prequel series, which premiered in fall 2024, focuses on a younger Gibbs during his early days as a special agent at the NCIS.

"NCIS: Origins" is produced by CBS Studios in association with Belisarius Productions. The series stars Austin Stowell as the young Leroy Jethro Gibbs. Harmon's return is expected to provide a direct link to the original "NCIS" narrative and character development, bridging the gap between the prequel and the long-running procedural drama.