Gregory Peck
Role: Robert Thorn
Lee Remick
Role: Katherine Thorn
David Warner
Role: Keith Jennings
Billie Whitelaw
Role: Mrs. Baylock
Harvey Stephens
Role: Damien Thorn
Patrick Troughton
Role: Father Brennan
Martin Benson
Role: Father Spiletto
John Stride
Role: Psychiatrist
Holly Palance
Role: Young Nanny
Anthony Nicholls
Role: Dr. Becker
Sheila Raynor
Role: Mrs. Horton
Robert MacLeod
Role: Horton
Bruce Boa
Role: Thorn's Aide
Don Fellows
Role: Thorn's Second Aide
Patrick McAlinney
Role: Photographer
Dawn Perllman
Role: Chambermaid
Nancy Mannigham
Role: Nurse
Miki Iveria
Role: First Nun
Betty McDowall
Role: American Secretary
Nicholas Campbell
Role: Marine
Burnell Tucker
Role: Secret Service Man (uncredited)
Ronald Leigh-Hunt
Role: Gentleman at Rugby Match (uncredited)
Guglielmo Spoletini
Role: Italian Taxi Driver (uncredited)
Freda Dowie
Role: Nun (uncredited)
Ya'ackov Banai
Role: Arab (uncredited)
Harvey Bernhard
Role: Man Walking across Street (uncredited)
Michael Byrne
Role: Monk (uncredited)
Leo McKern
Role: Carl Bugenhagen (uncredited)
Bill Reimbold
Role: General (uncredited)
Michael Leader
Role: Rugby Match Spectator (uncredited)
Mary Burleigh
Role: Rugby Match Spectator (uncredited)
Ann Barrass
Role: Guest at Damien’s Birthday Party
Mark Baxter
Role: Boy (uncredited)
Victor Harrington
Role: Monk (uncredited)
Suzanne Heimer
Role: Rugby Match Spectator
Walter Henry
Role: Hospital Orderly
Trevor Wedlock
Role: Man Buying Ice Cream at Safari Park (uncredited)