Albert Finney as Hercule Poirot

Lauren Bacall as Mrs. Harriet Belinda Hubbard

Martin Balsam as Signor Bianchi

Ingrid Bergman as Greta Ohlson

Sean Connery as Colonel Arbuthnot

Anthony Perkins as Hector MacQueen

Jean-Pierre Cassel as Pierre Paul Michel

Wendy Hiller as Prinzessin Dragomiroff

Vanessa Redgrave as Mary Debenham

Jacqueline Bisset as Countess Andrenyi

John Gielgud as Mr. Beddoes

Richard Widmark as Mr. Ratchett

Michael York as Count Andrenyi

Colin Blakely as Mr. Cyrus Hardman

Rachel Roberts as Hildegarde Schmidt

George Coulouris as Doctor

Denis Quilley as Foscarelli

Vernon Dobtcheff as Concierge

Jeremy Lloyd as A.D.C.

John Moffatt as Chief Attendant

Vic Tablian as Hawker (uncredited)

Leon Lissek as Dining Car Steward (uncredited)

Andrew Andreas as Waiter (uncredited)

David de Keyser as Turkish Ticket Collector (uncredited)