Over the years, NCIS has become one of the most successful crime dramas on television, but behind the scenes, there have been plenty of shocking secrets that the cast and crew have kept hidden. From behind-the-scenes feuds to unexpected departures, there’s more to the show than meets the eye.

One of the biggest bombshells involves Mark Harmon’s rumored tension with a former co-star. Reports suggest that a behind-the-scenes conflict led to Pauley Perrette’s sudden departure from the show, with the actress hinting at a toxic work environment. While CBS has never confirmed the full story, fans have speculated for years about what really happened.

Other secrets include cast members who almost didn’t make the cut. Michael Weatherly, who played Tony DiNozzo, reportedly had to fight for his role after network executives weren’t convinced he was the right fit. Meanwhile, Cote de Pablo’s abrupt exit as Ziva David shocked fans, but few know that she left due to creative disagreements over her character’s direction.

Despite the drama, NCIS has remained a fan-favorite series, proving that even with behind-the-scenes secrets, the show’s success is unstoppable. However, with new cast changes and ongoing rumors, fans can’t help but wonder what other secrets are still hidden.