Horror Drama
When a charming 12-year-old girl takes on the characteristics and voices of others, doctors say there is nothing they can do. As people begin to die, the girl's mother realizes her daughter has been possessed by the devil - and that her daughter's only possible hope lies with two priests and the ancient rite of demonic exorcism.
Directed by
William Friedkin
Ellen Burstyn
Chris MacNeil
Linda Blair
Regan MacNeil
Max von Sydow
Father Lankester Merrin
Donna Mitchell
Mary Jo Perrin
Jason Miller
Father Damien Karras
Mercedes McCambridge
Demon (voice)
Titos Vandis
Uncle John
Eileen Dietz
Demon / Regan Double (uncredited)
Jack MacGowran
Burke Dennings
Mary Boylan
First Mental Patient (uncredited)
Lee J. Cobb
Lt. Bill Kinderman
Robert Symonds
Dr. Taney
Barton Heyman
Dr. Klein
Rudolf Schündler
Karl
John Mahon
Language Lab Director
Kitty Winn
Sharon Spencer
Roy Cooper
Jesuit Dean
Wallace Rooney
Bishop Michael
Arthur Storch
Psychiatrist
Thomas Bermingham
Tom
William O'Malley
Father Joseph Kevin Dyer
Gina Petrushka
Willi
Vasiliki Maliaros
Mary Karras
Ron Faber
Chuck / Demon (voice)
Robert Gerringer
Senator at Party
Paul Bateson
Radiologist's Assistant (uncredited)
Elinore Blair
Nurse (uncredited)
Dick Callinan
Astronaut (uncredited)
Mason Curry
Doctor (voice) (uncredited)
Toni Darnay
Violent psychotic patient (uncredited)
Joanne Dusseau
Senator's Wife (uncredited)
Beatrice Hunter
Minor Role (uncredited)
Yvonne Jones
Bellevue Nurse (uncredited)
Don LaBonte
Minor Role (uncredited)
Barton Lane
Angiography Doctor (uncredited)
Ann Miles
Spiderwalk (uncredited)
John Nicola
Priest (uncredited)
Vincent Russell
Subway Vagrant (uncredited)
Gerard F. Yates
Priest Singing Around Piano at Party (uncredited)
Rita Sakellariou
(her voice on the radio)

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