How Many Episodes Was Mark Harmon's Gibbs In?
Mason Cooper
Updated on March 08, 2026
While Mark Harmon is no longer a part of the main "NCIS" cast, the probability of his return at some point in the show's future is high. In conjunction with his final episode premiering on CBS, Entertainment Tonight interviewed showrunner Steven D. Binder about Harmon's exit. Binder was quick to leave the door open for the seasoned actor to reprise his iconic role. "Regarding the future of Gibbs, as longtime fans of the show may have noticed over the years... never count Leroy Jethro Gibbs out," he said.
One anonymous source claiming to know Harmon even told Closer Weekly that he was planning on an "NCIS" return before deciding to devote his time instead to writing "Ghosts of Honolulu," a non-fiction book about espionage in World War II. "Mark's been teasing a return to the show and everyone wanted him back," they said. "He's still on the fence when it comes to going back to the grind."
Both the producers of "NCIS" and Harmon himself seem to be plenty interested in future Gibbs appearances. The biggest question about the character's future, then, isn't if, but when his return might manifest.