Actor Mark Harmon, who has played the beloved character Leroy Jethro Gibbs on the hit TV show "NCIS" for 18 seasons, has finally revealed the reasons behind his departure from the long-running series. In an interview, Harmon explained that his decision to leave was not an easy one, but ultimately necessary for both personal and professional reasons.

The main factor behind Harmon's departure was his desire to spend more time with his family.

As a devoted husband and father, he realized that his busy schedule on "NCIS" was taking away precious moments with his loved ones. Harmon expressed his gratitude for the incredible experience he had on the show, but acknowledged that it was time for him to prioritize his family.

Additionally, Harmon acknowledged that after 18 seasons, it was becoming increasingly challenging to find new ways to develop his character and keep the show fresh.

He wanted to end his journey on a high note, rather than continue on autopilot. Harmon mentioned that he always wanted "NCIS" to end on the right terms, and leaving now would give the show a chance to explore new storylines and introduce new characters.

Harmon's decision was also influenced by the recent decline in the show's ratings. While "NCIS" has been a consistently popular series throughout its run, the viewership had begun to decline in the past couple of seasons.

This decline, combined with Harmon's own desire for change, further cemented his decision to leave the show.

Despite his departure, Harmon expressed his gratitude towards the fans and the entire "NCIS" team. He acknowledged that without their unwavering support, the show would not have achieved the immense success it did. Harmon reassured fans that the show would continue to thrive without him and that he was excited to see what new directions the series would take.

The news of Harmon's departure has undoubtedly saddened fans who have grown attached to his character over the past 18 seasons. Leroy Jethro Gibbs has become an iconic figure in the world of television, and Harmon's portrayal has been widely praised by both critics and viewers alike.

In conclusion, Mark Harmon's decision to leave "NCIS" was primarily driven by his desire to prioritize his family and the need to explore new professional opportunities. The decline in ratings and the desire to end the show on a high note also played a role in his departure. Harmon's departure marks the end of an era for "NCIS," but fans can rest assured that the show will continue to captivate audiences with its intriguing storylines and memorable characters.