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. Her daughter's only possible hope lies with two priests and the ancient rite of demonic exorcism.
Ellen Burstyn
as Chris MacNeil
Linda Blair
as Regan MacNeil
Jason Miller
as Father Damien Karras
Max von Sydow
as Father Lankester Merrin
Lee J. Cobb
as Lt. Bill Kinderman
William O'Malley
as Father Joseph Kevin Dyer
Kitty Winn
as Sharon Spencer
Jack MacGowran
as Burke Dennings
Barton Heyman
as Dr. Klein
Peter Masterson
as Dr. Barringer
Rudolf Schündler
as Karl
Gina Petrushka
as Willi
