Noel Marshall was an American film producer, director, actor, and executive. He served as executive producer of The Exorcist and later became closely associated with Roar, an ambitious adventure film featuring numerous untrained lions and other big cats, which he produced, directed, wrote, and starred in alongside Tippi Hedren and members of their family. The film became notorious for its hazardous production and the injuries suffered by cast and crew. Marshall also produced films including The Harrad Experiment and Mr. Billion.