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Lee Remick as Katherine Thorn | Harvey Stephens as Damien | Patrick Troughton as Father Brennan | Martin Benson as Father Spiletto | Robert Rietti as Monk | Tommy Duggan as Priest | John Stride as Psychiatrist | Anthony Nicholls as Dr. Becker | Roy Boyd as Reporter | Sheila Raynor as Mrs. Horton | Robert MacLeod as Horton | Patrick McAlinney as Photographer | Dawn Perllman as Chambermaid | Nancy Mannigham as Nurse | Miki Iveria as First Nun | Betty McDowall as American Secretary | Burnell Tucker as Secret Service Man | Ronald Leigh-Hunt as Gentleman at Rugby Match | Guglielmo Spoletini as Italian Taxi Driver | Freda Dowie as Nun | Ya'ackov Banai as Arab | Harvey Bernhard as Man walking across street (uncredited) | Bill Reimbold as General (uncredited) | Executive Producer
 : Mace Neufeld | 
Producer
 :
 Harvey Bernhard | 
Director
 : Richard Donner | 
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