Austin Trevor

as Judson

as General Tankard

as Col. Warburton

as Sir John Kelly (uncredited)

as Dean Foster

as Lt. Gen. Sir Harold Power

as Count Krimbi, Aide to King Pavel II

as Commissioner Wayne

as Secretary General

as Edward Wilton

as Minister with Heart Attack (uncredited)

as Mr. Petitval

as Vanescu

as Sir Hervey Shaw

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 Heinreks

as Boris Vladimir

as Capt. Prada

as John Smith

as Schulemberg - German Air Chief of Staff

as Ralston

as Monocle Man (uncredited)

as Dr. Muller

as Col. Adraxine

as Count de Verneuil

as Le Beau

as Marquis de Grand Coeur

as Count de Verneuil

as Don Joao

as Swiss Hotelier-Gang Leader

as Inspector Parker

as Pierre Santos

as Lamotte

as Don Joâo

as Capt. Oates

as Pierre Falaise

as Leopold Dryden

as Hercule Poirot

as Captain Larco

as Paul Markatel

as Count Tonelli

as Captain James Kent

as Paul deLisle

as Hercule Poirot

as Hercule Poirot

as The Vicar

as Inspector Hanaud

as Captain of Military Police

as Detective-Inspector Drew

as Judge

as Dr. Coutras

as Dr. Martin

as Lakington

as Camp Commandant

as Brigadier Taplow

as Fowler