NCIS: Is Mark Harmon planning to reprise his iconic role as Leroy Jethro Gibbs? Here's everything we know

The actor teams up with tech advisor for a historical novel inspired by the show.

Updated on Sep 08, 2023  |  06:02 PM IST |  1.1M
Mark Harmon (imdb)
Mark Harmon (imdb)
Key Highlight
  • Mark Harmon recently delighted fans with news of a non-fiction novel inspired by the show
  • The 71-year-old actor is working on a book centered around the Office of Naval Intelligence

Mark Harmon, renowned for his portrayal of Agent Leroy Gibbs in NCIS for 19 seasons, recently delighted fans with news of a non-fiction novel inspired by the show. Partnering with former Special Agent Leon Carroll Jr., the 71-year-old actor is working on a book centered around the Office of Naval Intelligence, the predecessor of NCIS. While rumors circulate about a possible comeback to the long-running CBS drama, details regarding Mark's return remain uncertain. Nevertheless, his former cast members and network executives have expressed a desire to see Gibbs on-screen again.

The speculation surrounding Mark Harmon's return

Despite rumors, neither Mark nor CBS has officially confirmed whether the actor will make a comeback to NCIS. However, his former co-stars, including Rocky Carroll and Sean Murray, have hinted at the possibility of seeing Gibbs again. Showrunner Steven D. Binder and former CBS President Kelly Kahl also expressed a strong attachment to Mark's character, leaving the door open for a potential reappearance.

ALSO READ: Ariana Grande - Ethan Slater: SpongeBob voice actor’s wife DISPELS dating rumors?


Mark Harmon (imdb)

ALSO READ: Selena Gomez slays BARBIECORE as she celebrates her 31st birthday with special viewing of Barbie; DEETS here 

Mark Harmon's new book unveiled

Scheduled for release on November 14, Mark Harmon's upcoming book, titled "Ghosts of Honolulu: A Japanese Spy, A Japanese American Spy Hunter, and the Untold Story of Pearl Harbor," delves into the history of naval intelligence during World War Two. The book portrays the intriguing tale of Japanese-American agent Douglas Wada and Japanese spy Takeo Yoshikawa, engaged in high-stakes intelligence warfare before the attack on Pearl Harbor. Harmon expressed his dedication to unveiling the history and stories that influenced the creation of NCIS, shedding light on the often-hidden lives of public servants working at the highest level.


Mark Harmon's creative pursuits continue to captivate both his loyal NCIS fans and the broader literary community. As anticipation builds for his upcoming book release, viewers and readers alike eagerly await any news of his potential return to the beloved CBS drama. Regardless of the outcome, Mark's impact on NCIS and his dedication to unearthing untold stories leave a lasting legacy in the entertainment world.

ALSO READ: The Real Housewives of Atlanta 15 recap: Drew Sidora cries amidst cheating rumors and separation from husband



Why did Mark Harmon leave NCIS?
So why did Mark Harmon leave NCIS? In a special featurette for the NCIS Season 19 DVD, Harmon — who was also an executive producer on NCIS — hinted that he left the series “to keep it fresh in his career. “What has always drawn me here is the character I play and to keep it fresh and to keep it challenging,” he said.

What is Mark Harmon doing now?
NCIS star Mark Harmon has revealed his next project in an exciting career update – and fans of the long-running CBS show will love it. The actor, who played the show's lead role Leroy Jethro Gibbs from 2003 to 2021, is writing a book about the predecessor of NCIS.

Is Mark Harmon returning to NCIS in 2023?
Is Mark Harmon coming back to NCIS? The answer is maybe. In an interview with TV Insider in January 2023, Rocky Carroll, who plays NCIS Director Leon Vance, hinted that Harmon — who played NCIS Supervisory Special Agent Leroy Jethro Gibbs from seasons 1 to 19 of NCIS — could return in the future.

Pinkvilla Pulse
Subscribe to our newsletter for entertainment exclusives, star interviews, and the latest lifestyle trends. Look No Further!
About The Author

Suhasini is a budding writer with two years of experience under her belt. She has a passion for



Latest Articles