• 
  Denis Héroux

  regizor

• 
  John Vernon

  Pomeroy
• 
  Ray Milland

  Frank Richards
• 
  Roland Culver

  Wallace
• 
  Joan Greenwood

  Miss Malkin
• 
  John G. Jones

  Frank Richards
• 
  Chloe Franks

  Angela
• 
  Jean LeClerc

  Barrington

• 
  Alexandra Stewart

  Mrs. Blake
• 
  Susan Penhaligon

  Janet
• 
  Samantha Eggar

  Edina Hamilton
• 
  Sean McCann

  Inspector
• 
  Peter Cushing

  Wilbur Gray

• 
  Stéphane Reichel

  art department
• 
  Harry Waxman

  imagine

• 
  Peter Weatherley

  montaj
• 
  Tom Smith (III)

  make-up department
• 
  Richard R. St. Johns

  producător
• 
  Milton Subotsky

  producător
• 
  Wolf Kroeger

  design de producţie
• 
  Harry Pottle

  design de producţie
• 
  Claude Léger

  production manager
• 
  Nicolas Le Messurier

  sound department