Claude Rains as Kees Popinga

Marius Goring as Inspector Lucas

Märta Torén as Michele Rozier

Anouk Aimée as Jeanne

Herbert Lom as Julius de Koster, Jr.

Lucie Mannheim as Maria Popinga

Felix Aylmer as Merkemans

Ferdy Mayne as Louis

Eric Pohlmann as Goin

Michael Nightingale as Clerk

Gibb McLaughlin as Julius de Koster Snr.

Joan St. Clair as Frida Popinga

Robin Alalouf as Karl Popinga

Michael Alain as Train Conductor

Jean Deveaux as Train Official

Roy Purcell as Pierre

MacDonald Parke as American Businessman

Mary Mackenzie as Madame Lucas

Louis Matto as Joie de Vivre Barman (uncredited)

Arthur Mallard as (Uncredited)

Pat Ryan as Joie de Vivre Patron (uncredited)

Charles Wood as Chess Player (uncredited)