Parker gets closer to finding out the truth about his mother! | The NCISverse

What really changed Mark Harmon during his final years on NCIS? In the beginning, Gibbs was sharp, intense, and constantly in control. But in his final seasons, something shifted. His presence grew quieter, his role more reflective. Behind the scenes, years of responsibility, pressure, and change reshaped how Harmon approached the character. Fans noticed the difference before it was ever explained. Did time change Gibbs — or the man behind him? | Love USA

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Mark Harmon defined NCIS for nearly two decades. His leadership shaped the show’s tone, discipline, and emotional restraint, making Gibbs one of television’s most respected characters. As the series aged, changes began to surface. Creative control shifted, production demands increased, and Harmon’s presence slowly became more limited without clear explanation. Rather than address rumors or offer interviews, Harmon stayed quiet. That silence only fueled curiosity among fans who noticed the show f