• 
  Guy Hamilton

  regizor

• 
  Anthony Shaffer

  scenarist

• 
  Peter Ustinov

  Hercule Poirot
• 
  Jane Birkin

  Christine Redfern
• 
  Colin Blakely

  Sir Horace Blatt
• 
  Richard Vernon

  Mr. Flewitt
• 
  Maggie Smith

  Daphne Castle
• 
  Roddy McDowall

  Rex Brewster

• 
  James Mason

  Odell Gardener
• 
  Sylvia Miles

  Myra Gardener
• 
  John Alderson

  Sergent de poliţie
• 
  Dimitri Andreas

  Gino
• 
  Diana Rigg

  Arlena Stuart Marshall
• 
  Denis Quilley

  Captain Kenneth Marshall
• 
  Nicholas Clay

  Patrick Redfern

• 
  Robert Dorning

  Concierge
• 
  Paul Antrim

  Police Inspector
• 
  Cyril Conway

  Police Surgeon
• 
  Barbara Hicks

  Flewitt's Secretary
• 
  Emily Hone

  Linda Marshall