Longtime NCIS star Mark Harmon has reportedly revealed plans to officially step away from the series, shocking fans who’ve followed his iconic portrayal of Leroy Jethro Gibbs for nearly two decades. While Harmon has scaled back his appearances in recent seasons, new details have emerged suggesting a behind-the-scenes feud may have played a role in his decision to walk away for good. Sources close to the show claim the tension had been brewing for some time, and despite efforts to smooth things over, it eventually became clear that parting ways was inevitable.

Though the network has remained tight-lipped, insiders suggest the feud may have involved a creative disagreement with another high-profile cast member. While neither party has publicly named names, rumors point to clashing visions for the future of the show and certain storylines that created friction during production. Harmon, known for his professionalism, is said to have tried to keep things civil, but ultimately decided that stepping away was the best move for his peace of mind and legacy.

Fans have taken the news with mixed emotions—some expressing sadness, others gratitude for the years of compelling storytelling Harmon brought to the role. Many are calling for a fitting sendoff, perhaps a final appearance to wrap up Gibbs’ journey once and for all. Whether or not that happens, one thing is certain: Mark Harmon’s contributions to NCIS have left a permanent mark on the series, and his departure signals the end of an unforgettable era in television.