Trailer
Cast
Guglielmo Spoletini
Italian Taxi Driver (uncredited)
David Warner
Keith Jennings
John Stride
Psychiatrist
Sheila Raynor
Mrs. Horton
Miki Iveria
First Nun
Patrick Troughton
Father Brennan
Roy Boyd
Reporter
Robert MacLeod
Horton
Betty McDowall
American Secretary
Nicholas Campbell
Marine
Ronald Leigh-Hunt
Gentleman at Rugby Match (uncredited)
Michael Byrne
Monk (uncredited)
Michael Leader
Rugby Match Spectator (uncredited)
Tommy Duggan
Priest
Anthony Nicholls
Dr. Becker
Burnell Tucker
Secret Service Man (uncredited)
Leo McKern
Carl Bugenhagen (uncredited)
Ya'ackov Banai
Arab (uncredited)
Billie Whitelaw
Mrs. Baylock
Martin Benson
Father Spiletto
Robert Rietti
Monk
Don Fellows
Thorn's Second Aide
Gregory Peck
Robert Thorn
Lee Remick
Katherine Thorn
Bruce Boa
Thorn's Aide
Freda Dowie
Nun (uncredited)
Harvey Stephens
Damien Thorn
Holly Palance
Young Nanny