Eric Portman
Fernand Maubert
Guy Rolfe
Philippe Lodocq
Nadia Gray
Madeleine Saincaize
George Cole
Marc, detective
Harold Lang
Belfort, the pickpocket
Edward Chapman
Minister for War
Maurice Denham
Colonel de la Roche
May Hallatt
Monique
Arthur Lowe
Town Clerk
Sebastian Cabot
Prefect
Jeremy Spenser
Jacques
Hattie Jacques
Barmaid (uncredited)
John Salew
Minister's Secretary
James Hayter
Mayor
Philip Stainton
Café Manager
Alastair Hunter
Watchman at Legation
Charles Paton
Café Schader Waiter (uncredited)
Dido Plumb
Blind Beggar (uncredited)
John Carol
Jean Louis / Alfred Louis
Madge Brindley
Jacques' Grandmother
Patrick Young
Captain le Maitre
Keith Pyott
Father Pletsier
Natasha Sokolova
Nicole Porte
Hal Osmond
Swiss Taxi Driver
Gerald Andersen
Coding Clerk (uncredited)
Andreas Malandrinos
Bank Watchman (uncredited)
Iris Vandeleur
Cleaning Woman (uncredited)