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)
Bernard Browne
Gendarme (uncredited)
Frederick Rawlings
Plainclothes Sergeant (uncredited)
Richard Klee
Brian Jackson
Plainclothes Officer (uncredited)
Heinz Bernard
