Harmon Returns to NCIS Universe Full-Time

Mark Harmon continues his deep connection to the NCIS universe, now fully engaged with the prequel series NCIS: Origins. He is both the narrator and an executive producer for the show, which delves into the early career of Supervisory Special Agent Leroy Jethro Gibbs, with Austin Stowell portraying the younger version of the character. Harmon's role expands significantly as he is set to appear in every episode of the third season of NCIS: Origins, which began airing on October 6. This return marks a significant commitment following his initial departure from the flagship NCIS series in 2021. Harmon cited that his exit from the long-running procedural was a matter of timing and a personal desire to provide his character with an honest and fitting conclusion after nearly two decades. He also admitted that fatigue played a role in his decision to step away from the demanding schedule of the original series. The actor stated he "left the show, [he] didn't retire," indicating his continued passion for working within the franchise. His son, Sean Harmon, will also make a guest appearance in the upcoming season. Harmon's ongoing involvement underscores his enduring legacy within the NCIS saga.