Elenco

• 

  Susan Strasberg

  Penny Appleby

• 

  Ronald Lewis

  Robert

• 

  Ann Todd

  Jane Appleby

• 

  Christopher Lee

  Doctor Pierre Gerrard

• 

  John Serret

  Inspector Legrand

• 

  Leonard Sachs

  Mr. Spratt

• 

  Anne Blake

  Marie the Maid

• 

  Fred Johnson

  Mr. Appleby

• 

  Madame Lobegue

  Swiss Air Hostess (uncredited)

• B

  Bernard Browne

  Gendarme (uncredited)