Sean Murray and Brian Dietzen have been key figures on NCIS for years, portraying Timothy McGee and Dr. Jimmy Palmer, respectively. Their presence brought consistency, warmth, and depth to the long-running crime drama, making their exit all the more impactful for loyal fans. While neither actor left due to controversy, their joint departure marks the end of an era—and a shift in the show’s direction.

Behind the scenes, both actors have reportedly been considering stepping away for personal and professional growth. Sean Murray, who has been with NCIS since the early seasons, has expressed interest in exploring new roles, possibly behind the camera as a producer or director. Similarly, Brian Dietzen, who co-wrote a few episodes, has shown interest in writing and developing projects beyond the NCIS universe.

Another contributing factor is the natural evolution of the series. With over 20 seasons completed, the writers and producers are reimagining NCIS for a new generation, creating space for fresh faces and storylines. Murray and Dietzen’s departure is not a sign of conflict, but rather a mutual understanding between the actors and the creative team to allow the characters to exit respectfully and meaningfully.

Though fans are saddened by the news, the legacy of McGee and Palmer remains intact. Their final episodes are expected to honor their long journey and provide a heartfelt send-off. As both actors move on to new opportunities, their contributions to NCIS will continue to be celebrated by fans around the world.