Pauley Perrette’s departure from “NCIS” in 2018, after 15 years, was initially surrounded by positive remarks from CBS and herself. However, it later emerged that a significant conflict with co-star Mark Harmon, particularly over an incident involving Harmon’s dog biting a crew member, was a major factor in her decision to leave. Despite the dog being subsequently banned from set, tensions remained, leading to Perrette and Harmon not filming scenes together for two years. Perrette has since been vocal about her fear of Harmon and allegations of “multiple physical assaults,” which she shared in a series of tweets. She has expressed a firm decision not to return to “NCIS,” citing fear and trauma related to these events