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Tony Randall
Hercule Poirot

Anita Ekberg
Amanda Beatrice Cross

Robert Morley
Hastings

Maurice Denham
Japp

Guy Rolfe
Duncan Doncaster

Sheila Allen
Lady Diane

James Villiers
Franklin

Julian Glover
Don Fortune

Grazina Frame
Betty Barnad

Clive Morton
Mister K

Cyril Luckham
Sir Carmichael Clarke

Richard Wattis
Wolf

David Lodge
Sergeant

Patrick Newell
Cracknell

Austin Trevor
Judson

Alison Seebohm
Miss Sparks