As of early 2025, there is no plan for Mark Harmon to return to NCIS. Harmon retired from acting in 2023 after his long-running role as Special Agent Leroy Jethro Gibbs, and he has not signaled any intention to resume the role. Production has continued without him, and CBS has not announced or indicated development of a storyline that would bring Harmon back. This status reflects his definitive shift away from full-time acting, making a return unlikely without an unforeseen change in circumstances or personal health.
Mark Harmon’s NCIS tenure and retirement context
Key milestones and dates at NCIS
Mark Harmon joined NCIS in 2003 and became one of television’s most consistent lead performers, anchoring the series for two decades. His portrayal of Gibbs defined the show’s tone for much of its run. Below is a concise timeline of major NCIS milestones related to Harmon’s involvement.
| Date or Period | Event | Why It Matters |
|---|---|---|
| 2003 | Harmon joins NCIS as Leroy Jethro Gibbs | Launched a long-running lead role that defined the series |
| 2017 | NCIS reaches seasons 15–16; Harmon remains a top-billed lead | Establishes Harmon as central to the franchise |
| September 2023 | Harmon announces retirement from acting | Effectively ends regular involvement with NCIS |
| 2024–2025 | NCIS continues producing new seasons without Harmon | Confirming ongoing operations and reduced legacy role |
Retirement announcement and implications
In September 2023, Harmon announced his retirement from acting, stating a need to prioritize personal health and family. The announcement clarified that he would not take on new recurring roles or projects that would require long-term commitments. Because NCIS has since proceeded with storylines and production without him, any return to the series would require not only a reversal of this decision but also a significant narrative adjustment.
Current production status of NCIS in 2025
Showrunner and creative direction
NCIS is currently overseen by established showrunners and a broader creative team at CBS Studios. Recent seasons have focused on ensemble storytelling, integrating new characters while honoring legacy arcs. Industry reporting indicates that the series is positioned for continuity, with no plans to pivot plots around a return that would disrupt ongoing character development.
CBS announcements and public statements
To date, CBS and NCIS producers have not issued statements suggesting active consideration of Harmon’s return. Public remarks from showrunners and network executives emphasize moving forward with the current cast and narrative framework. In the absence of official announcements, the working assumption remains that Harmon will not reappear as a series regular or in a recurring capacity.
Factors affecting the likelihood of a return
Evaluating whether Mark Harmon could return to NCIS involves weighing personal, production, and narrative factors. Harmon’s health and retirement stance are pivotal; the series has already adapted to his absence by developing new plots and elevating supporting characters. Any substantial change would depend on his personal circumstances, which remain private, as well as a deliberate creative decision from CBS and the showrunners.
- Health and personal considerations: Continued retirement statements and industry coverage indicate low near-term probability.
- Narrative fit: NCIS has adjusted its storytelling direction to function without a Gibbs-centric focus.
- Contractual and logistical factors: No public agreements or casting notices suggest renewed involvement.
What would a return plausibly look like?
Should circumstances shift, a Harmon return would likely require discrete planning: a defined story arc, schedule accommodations for taping, and narrative justification that aligns with ongoing character developments. Given the series’ momentum and the dispersed leadership across an expanded cast, the structural burden of reintegrating his character would be considerable. Industry observers typically regard such moves as high-impact decisions, reserved for exceptional situations rather than routine scheduling or seasonal shifts.
Comparative perspective on actor returns in long-running series
Television history includes instances where retired actors have returned for limited arcs or special episodes, often tied to milestone events or legacy storytelling goals. However, these cases are exceptions rather than patterns, particularly when the actor has explicitly retired and the series has continued in their absence. The operational and creative incentives for such returns diminish over time as shows evolve new equilibriums.
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Retirement announcement | September 2023; stated intent to retire from acting | Public statement / interview |
| Ongoing NCIS production | Series continues through at least season 21 in 2025 | Network and studio announcements |
| No announced return plans | CBS and NCIS showrunners have not indicated plans for Harmon’s return | Trade and broadcast reporting |
| Narrative adaptation | NCIS has developed new arcs that do not rely on Gibbs-centric storylines | Season overviews and showrunner commentary |
Summary and key takeaways
Mark Harmon is not returning to NCIS in 2025. He retired in September 2023, and production has continued without him. There are no credible reports or indications of imminent change. For audiences hoping to see Gibbs again, the expectation should remain that NCIS will proceed with its current ensemble and evolving narrative structure. Any future shift would depend on highly specific personal and creative developments that are not evident as of early 2025.