Tony Randall

Hercule Poirot

Anita Ekberg

Amanda Beatrice Cross

Robert Morley

Captain Hastings

Maurice Denham

Inspector Japp

Guy Rolfe

Dr. Duncan Doncaster

Sheila Allen

Lady Diane

James Villiers

Franklin

Julian Glover

Don Fortune

Clive Morton

Mister X

Cyril Luckham

Sir Carmichael Clarke