NCIS is rolling strong ahead of Season 21, and that's thanks in no small part to the chemistry of its current cast. Despite the departure of Mark Harmon in Season 19, the CBS drama has managed to maintain a solid audience across CBS and those tuning in using their Paramount+ subscriptions. Despite that success, some allegations have surfaced pointing to behind-the-scenes issues between Nick Torres actor Wilmer Valderrama and Tim McGee portrayer Sean Murray, despite the public perception they're buddy-buddy.
Months after Sean Murray publicly referred to Wilmer Valderrama as a "brother," rumors are spinning around the idea that the two TV stars are very competitive behind the scenes. Radar Online reported that it's actually led to some tension between them when it comes to credit for the show's continued success:
