The conflict between Pauley Perrette and Mark Harmon on the set of NCIS began in 2016 when Harmon’s dog bit a crew member. Despite concerns from cast and crew, Harmon continued bringing the dog on set. Perrette confronted Harmon about the situation, leading to a rift between them. They avoided filming together, with scripts written to keep them apart. Perrette left the show in 2018 amid rumors of the conflict, although she cited other reasons for her departure. Perrette’s cryptic tweets implied bullying, but CBS stated her departure was unrelated to the dog incident. Perrette retired from acting in 2020, while Harmon left NCIS as a series regular in 2021.

She Writed on X: NO I AM NOT COMING BACK! EVER! (Please stop asking?) I am terrified of Harmon and him attacking me. I have nightmares about it. I have a new show that is SAFE AND HAPPY! You’ll love it! #HappyPlace Love y’all!