The identity of the titular, singular “exorcist” of The Exorcist has always been a little murky. In the 1973 original ... all priests trying to cast a demon out of a 12-year-old girl ...

Linda Blair wrote that William Friedkin 'changed my life forever' when he cast her as Regan MacNeil in 1973's 'The Exorcist' Morgan Lieberman/Getty Ellen Burstyn and her The Exorcist costar Linda ...