Current Status of Mark Harmon on NCIS
Mark Harmon starred as Leroy Jethro Gibbs from the pilot in 2003 through the end of season 19. His final appearance aired in 2021, and he has not returned as a regular cast member since. The character was written out with a clear exit, and no subsequent season has included Harmon in a recurring or guest capacity. Industry reports and official network statements confirm that Harmon is not currently attached to NCIS in any on-screen role. For background on his career and other projects, see his profile on Forbes.
NCIS remains one of the longest-running scripted series on American television. The show is produced by CBS Studios and aired on the CBS network. As of the latest available public information, the series continues to air new episodes with a rotating ensemble cast. No official casting announcement has indicated that Mark Harmon will reprise Gibbs in future seasons.
Latest NCIS Casting and Creative Team Updates
The current NCIS leadership includes executive producers who have overseen the series for multiple seasons. The show's showrunners have emphasized continuity while introducing new agents and storylines. Cast changes are managed through standard studio and network casting processes. The latest seasons focus on the core team at the Washington, D.C. field office, with Gibbs referenced in past storylines but not as an active field agent.
New Lead Characters and Story Arcs
Following Harmon's departure, the series introduced new lead characters to anchor the team. The current main cast includes agents with distinct backgrounds and investigative specialties. Story arcs have shifted toward ensemble cases and ongoing personal dynamics within the team. No storyline has brought Mark Harmon back in a flashback, voiceover, or cameo role in recent seasons.
Where to Watch NCIS and Official Sources
New episodes of NCIS air on CBS and are available for streaming on Paramount+. The network's official website provides episode guides, cast biographies, and press releases. For verified updates on casting and production, the CBS Entertainment press site is the primary source. The show's production companies include CBS Studios and its predecessors, with episodes distributed through standard broadcast and streaming windows.
How to Verify Casting News
Fans can confirm casting news through official network announcements and reputable trade publications. Verified sources include network press releases and trusted entertainment outlets that report directly from studios. Avoid unverified fan forums or speculative posts when checking whether Mark Harmon returns to NCIS. For official network information, visit the CBS NCIS page.