Mark Harmon’s departure from NCIS surprised many fans who had followed him as Special Agent Leroy Jethro Gibbs for nearly two decades. In reality, Harmon’s decision to leave the show was driven by a mix of personal and professional reasons rather than any sudden conflict or controversy. After years of dedicating himself to the role, he wanted to step back and focus more on his family and personal life.

Harmon has spoken about the physical and emotional demands of the long-running series. The intense shooting schedules and the pressure of carrying a flagship show took a toll, prompting him to consider what was best for his health and well-being. He expressed a desire to explore new opportunities, including directing and producing, that didn’t require the same on-screen commitment.

Despite leaving the day-to-day work on NCIS, Harmon made it clear that his exit was amicable. He remains proud of the show’s legacy and the relationships he built with cast and crew. His character’s story was given a respectful send-off, allowing fans to say goodbye in a way that felt true to the series.

Ultimately, Harmon’s departure reflects a natural transition in a long and successful career. His choice highlights the importance of balance and personal growth—even for TV legends—and leaves the door open for future appearances or projects beyond NCIS.