Robert Mitchum as Dave Bishop

Geneviève Page as Dominique Danemore

Ingrid Thulin as Brita Lindquist

Frédéric O'Brady as Jonathan Spring

Inga Tidblad as Mrs Lundquist

Lauritz Falk as Jones

Eugene Deckers as Pierre Sandoz

John Padovano as Tony Forrest

Frederick Schrecker as Karl Mannheim

Georges Hubert as Dr. Thibault

Peter Copley as Brown

Lily Kann as Blind Housekeeper

Ralph Brown as Smith

Milo Sperber as Baum

Jim Gérald as Bistro Owner

Jean Galland as Victor Danemore

John Starck as Starky

Gilbert Robin as Dodo

Valentine Camax as Charwoman

Robert Le Béal as Charles

Lars Kåge as (uncredited)

Sylvain Lévignac as Henchman (uncredited)

Jimmy Perrys as Worker Living in the Building of Mannheim (uncredited)

Ulla Sjöblom as Unknown (voice) (uncredited)

Pierre Vaudier as Customs Officer at Vienna Airport (uncredited)