Mark Harmon’s Exit Nearly Ended NCIS—The Shocking Story Behind the Brink of Cancellation!

Mark Harmon’s decision to step down as Leroy Jethro Gibbs on NCIS nearly brought the long-running series to an end. After his final full appearance in 2021, serious discussions about canceling the show took place.

Gary Cole, who succeeded Harmon as Agent Alden Parker, revealed on the Off Duty: An NCIS Rewatch podcast that the possibility of wrapping up the series was considered during the transition between seasons 18 and 19.

To ensure a seamless handover, the showrunners devised a strategy where Harmon appeared in early season 19 episodes, helping to establish Parker’s role. Cole praised this approach, which avoided a jarring replacement by having Gibbs and Parker share screen time, solving cases together.

Although Harmon retired from acting on NCIS, he remains closely involved as an executive producer. Recently, he played a key role in supporting the franchise’s new spin-off, NCIS: Origins, which delves into Gibbs’ early career.

While many appreciate his continued influence, insiders report that some younger team members occasionally find his involvement in casting and plotlines frustrating, wishing he’d take a step back.

Despite the initial uncertainty, NCIS continues to thrive, proving its enduring appeal even after the departure of its iconic lead.