Austin Trevor

as Judge

as Judson

as Dr. Coutras

as General Tankard

as Lt. Gen. Sir Harold Power

as Col. Warburton

as Sir John Kelly (uncredited)

as Dean Foster

as Count Krimbi, Aide to King Pavel II

as Dr. Martin

as Commissioner Wayne

as Lakington

as Secretary General

as Captain Cranmer

as Mr. Petitval

as Minister with Heart Attack (uncredited)

as Vanescu

as Camp Commandant

as Edward Wilton

as Brigadier Taplow

as Sir Hervey Shaw

as Fowler

as Leon de Colville

as The Herald

as Police Commissaire

as Prof. Palmer

as Col. Vronsky

as Major Lutzen

as The Duke

as John Cardew

as Soldier Talking to Corporal

as French Registrar

as U-boat Captain

as Captain Hartzmann

as John Smith

as Boris Vladimir

as Capt. Prada

as Heinreks

as Schulemberg - German Air Chief of Staff

as Ralston

as Col. Adraxine

as Dr. Muller

as Monocle Man (uncredited)

as Swiss Hotelier-Gang Leader

as Marquis de Grand Coeur

as Le Beau

as Count de Verneuil

as Count de Verneuil

as Don Joao

as Don Joâo

as Inspector Parker

as Capt. Oates

as Lamotte

as Pierre Santos

as Leopold Dryden

as Hercule Poirot

as Pierre Falaise

as Captain Larco

as Count Tonelli

as Paul Markatel

as Captain James Kent

as Hercule Poirot

as Paul deLisle

as Hercule Poirot

as Detective-Inspector Drew

as The Vicar

as Captain of Military Police

as Inspector Hanaud