Linda Blair is an American actress, film producer and animal rights activist. Blair is best known for her role as the possessed child, Regan, in the film The Exorcist, for which she was nominated for an Academy Award and won a Golden Globe. She reprised her role in Exorcist II: The Heretic. In addition to her acting credits, Blair has publicly supported various charitable causes, specifically animal rights. in 2004, she founded the Linda Blair WorldHeart Foundation, which serves to rehabilitate and adopt rescue animals.