Jennifer Love Hewitt's character, Kate Callahan, in Criminal Minds faced significant backlash from some fans who felt that she distracted from the other members of the BAU and took away valuable screen time. Despite her warm, relatable traits and a tragic backstory, her character didn't resonate with everyone, leading some viewers to even start a petition to have her written off the show. However, Hewitt's departure came not because of fan dissatisfaction, but due to her pregnancy and desire to focus on her growing family, resulting in her exit at the end of Season 10.