Army psychiatrist Colonel Kane is posted to a secluded gothic castle housing a military asylum. With a reserved calm, he indulges the inmates' delusions, allowing them free rein to express their fantasies.
Col. Hudson Kane
Stacy Keach
Capt. Billy Cutshaw
Scott Wilson
Lt. Frankie Reno
Jason Miller
Col. Richard Fell
Ed Flanders
Maj. Marvin Groper
Neville Brand
Capt. Fairbanks
George DiCenzo
Maj. Nammack
Moses Gunn
Lt. Bennish
Robert Loggia
Lt. Spinell
Joe Spinell
Lt. Gomez
Alejandro Rey
Sgt. Krebs
Tom Atkins
1st Cyclist
Steve Sandor
2nd Cyclist
Richard Lynch
Dr. Fromme (uncredited)
William Peter Blatty
Sergeant in combat shack
Bruce Boa
Sgt. Gilman
Gordon Mark
Highway Patrolman
William Lucking
Sgt. Christian
Stephen Powers
1st General
David Healy
2nd General
William Paul
Priest
Tom Shaw
Inmate
Gordon K. Kee
Waitress
Linda Blatty
Marine Corporal
Hobby Gilman
Cyclist
Marilyn Raymon
Driver
Bobby Bass
Young Kane
Billy Blatty