Are there HR departments on movie and TV sets? Presumably. But based on how many awful things seem to happen during production — and how rarely anyone faces consequences — you’d be forgiven for thinking otherwise. Seriously, try kicking a coworker to the ground at your job and see how that goes. But if a star does it… everyone looks away. That’s the reality, at least according to a number of actors who’ve made claims about their co-stars’ behavior over the years. From on-set assaults to shocking behind-the-scenes drama, here are some of the most disturbing allegations actors have made about their co-stars: Note:  This post contains mentions of sexual assault, abuse (including involving minors), violence, and death. Reader discretion is advised. 1. Tatum O'Neal accused her co-star and father Ryan O'Neal of being physically abusive. Tatum was just an 8-year-old with no acting experience when she was cast as the daughter of Ryan O'Neal (her real-life father) in 1973's Paper Moon .…