For nearly two decades, Mark Harmon served as the heart and soul of NCIS, playing Special Agent Leroy Jethro Gibbs. Behind the scenes, his leadership extended beyond his character, shaping the dynamic of the entire cast and crew. Now, the NCIS cast is opening up about what it was really like to work alongside the television icon, confirming what fans have long suspected about the man behind the role.

Co-stars have often described Harmon as a consummate professional and a natural leader. “Mark set the tone for the show,” one cast member shared. “He was always prepared, always supportive, and made sure everyone felt valued on set.” Harmon’s commitment to his craft and his team created a sense of camaraderie that became a hallmark of the show’s success.

Despite his reputation for being reserved, Harmon was known for his kindness and mentorship, particularly with younger cast members. Emily Wickersham, who played Ellie Bishop, once said, “Mark was always approachable and willing to share advice. He genuinely cared about everyone’s growth, both on and off-screen.” Other cast members have echoed similar sentiments, describing Harmon as someone who fostered a collaborative and respectful work environment.

As NCIS continues without Harmon, his legacy remains an integral part of the show’s fabric. His dedication to excellence and the relationships he built on set are a testament to his character, both as an actor and a person. For fans, hearing these heartfelt stories only deepens their appreciation for the man who brought Gibbs to life and helped make NCIS one of the most beloved shows on television.