For nearly two decades, Mark Harmon was the foundation of NCIS. His role extended far beyond the screen, shaping the show’s rhythm and leadership behind the scenes. As time passed, those around him saw the signs. Reduced hours, careful pacing, and a slow transition hinted that a chapter was closing well before it was announced. Fans, however, experienced the change all at once. Without buildup or explanation, the exit felt abrupt and emotional. Looking back, it becomes clearer. Harmon’s departur