Peter Ustinov

as Hercule Poirot

Jean Stapleton

as Ariadne Oliver

Constance Cummings

as Amy Folliatt

Tim Pigott-Smith

as Sir Stubbs

Jonathan Cecil

as Hastings

Kenneth Cranham

as Insp. Bland

Susan Wooldridge

as Amanda Brewis

Christopher Guard

as Alec Legge

Jeff Yagher

as Eddie South

Clive Donner

Director