William Peter Blatty with George Gobel and Frank Hanrahan

William Peter Blatty with June Allyson, Dick Powell and Regis Toomey

William Peter Blatty charms the girls from "The Bob Cummings Show"

Ellen Burstyn, William Peter Blatty, and Jason Miller in The Exorcist (1973)

"The Exorcist" Dir. William Friedkin, Producer and Author William Peter Blatty 1973 Warner

William Peter Blatty in Oscars, Actors and The Exorcist (1974)

William Peter Blatty and Jack MacGowran in The Exorcist (1973)

William Peter Blatty with Dick Powell and June Allyson

William Peter Blatty at U.S.C. (The University of Southern California)