NCIS fans were stunned when news broke that Brian Dietzen, who plays the beloved Dr. Jimmy Palmer, would be stepping away from the series. As one of the show’s most consistent and quietly powerful presences, his departure marks the end of an era. For years, Dietzen has brought warmth, empathy, and subtle humor to the role, making Palmer a fan favorite.

The reason behind his exit is both surprising and deeply personal. Dietzen reportedly made the decision to step away in order to focus on his health and spend more time with his family. After years of balancing a demanding filming schedule, he felt it was the right moment to prioritize life off-screen. He also hinted at wanting to pursue new creative projects, possibly even behind the camera.

Though fans are sad to see him go, many have expressed admiration for his decision. His character has been a steady presence through years of cast changes and storylines, and his growth from assistant medical examiner to chief was one of the show’s more touching evolutions.

Whether or not he returns for guest appearances, Dietzen’s legacy as Jimmy Palmer is secure. He leaves behind a character who stood for kindness, professionalism, and resilience — a true heart of NCIS.