William Brent Bell is an American film director, screenwriter, and producer. He is known for his work on horror films such as Stay Alive (2006), The Devil Inside (2012), Wer (2013), The Boy (2016), Brahms: The Boy II (2020), Separation (2021), Orphan: First Kill (2022), and Lord of Misrule (2023). His films have grossed over $300 million worldwide at the box office.