George C. Scott
Lt. William 'Bill' Kinderman
Ed Flanders
Father Joseph Kevin Dyer
Brad Dourif
James Venamun / The Gemini Killer
Jason Miller
Father Damien Karras / Patient X
Nicol Williamson
Father Morning
Scott Wilson
Dr. Temple
Nancy Fish
Nurse Allerton
George DiCenzo
Stedman
Don Gordon
Ryan
Lee Richardson
University President
Grand L. Bush
Sergeant Atkins
Mary Jackson
Mrs. Clelia
Viveca Lindfors
Nurse X
Ken Lerner
Dr. Freedman
Tracy Thorne
Nurse Keating
Barbara Baxley
Shirley
Zohra Lampert
Mary Kinderman
Harry Carey, Jr.
Father Kanavan
![Sherrie Wills]()
Sherrie Wills
Julie Kinderman
![Edward Lynch]()
Edward Lynch
Patient A
Clifford David
Dr. Bruno
Alex Zuckerman
Korner Boy
Lois Foraker
Nurse Merrin
Tyra Ferrell
Nurse Blaine
![James Burgess]()
James Burgess
Thomas Kintry
Kevin Corrigan
Altar Boy
![Peggy Alston]()
Peggy Alston
Mrs. Kintry
![John Durkin]()
John Durkin
Elderly Jesuit
![Bobby Deren]()
Bobby Deren
Nurse Bierce
![Jan Neuberger]()
Jan Neuberger
Alice
![Alexis Chieffet]()
Alexis Chieffet
Counter Attendant
![Debra Port]()
Debra Port
Waitress
Walt MacPherson
Police Sergeant
David Dwyer
Second Police Officer
Danny Epper
Police Driver
![William Preston]()
William Preston
Old Man in Wheelchair
![Chuck Kinlaw]()
Chuck Kinlaw
Attendant
![Demetrios Pappageorge]()
Demetrios Pappageorge
Casperelii
![Nina Hansen]()
Nina Hansen
Little Old Lady
Samuel L. Jackson
Dream Blind Man
![Shane Wexel]()
Shane Wexel
First Dream Boy (uncredited)
![Ryan Paul Amick]()
Ryan Paul Amick
Second Dream Boy (uncredited)
![John Coe]()
John Coe
Old Man in Dream (uncredited)
Jodi Long
First Dream Woman (uncredited)
![Kathy Gerber]()
Kathy Gerber
Second Dream Woman (uncredited)
![Jan Smook]()
Jan Smook
Radio Man (uncredited)
Amelia Campbell
Young Girl in Dream (uncredited)
![Cherie Baron]()
Cherie Baron
Nurse
Larry King
Larry King
![C. Everett Koop]()
C. Everett Koop
Everett Koop
Patrick Ewing
Angel of Death
Clinton Brandhagen
Young Boy in Dream (uncredited)
![Michael Criscuolo]()
Michael Criscuolo
Mental Patient (uncredited)
![Cindy Cullom]()
Cindy Cullom
Nurse (uncredited)
Colleen Dewhurst
Satan (voice) (uncredited)
Fabio
Angel (uncredited)
![Randy Aaron Fink]()
Randy Aaron Fink
Student (uncredited)
![Jeff Henry]()
Jeff Henry
Angel (uncredited)
Patt Noday
Hospital Ward Priest (uncredited) (unconfirmed)
![Manley Pope]()
Manley Pope
Angel (uncredited)
![John Thompson]()
John Thompson
John Thompson - Georgetown Hoyas Basketball Coach (uncredited)
![Michael Tove]()
Michael Tove
Man in Purgatory (uncredited)
![Brad Waller]()
Brad Waller
Asylum Inmate (uncredited)
![Gary Wheeler]()
Gary Wheeler
Crime Photographer (uncredited)
Teresa Wright
Penitent (uncredited)
Charles Edwin Powell
Patient X Possessed
