Richard Greene
Treasury Agent Lee Scott
Anouk Aimée
Elena Vargas
Michael Denison
British Agent Ricky Metcalfe
José Nieto
Pierre, lead henchman
Alfonso Estela
Henchman
Conrado San Martín
Henchman
Antonio Almorós
Lucien Remue, henchman
G.H. Mulcaster
Col. Ingleby
Robert Ayres
Mr. Dean, American Embassy superior
Richard Warner
Inspector LeGrand, of the Surete
John Warwick
Bryant, manager of the Sportadrome
Philip Saville
Martin Scott
Arnold Bell
Preventive Officer
Olive Milbourne
Mrs. Ingleby
Max Brimmell
Photographer (uncredited)
Alex Gallier
Head Waiter (uncredited)
Lloyd Lamble
Embassy Official (uncredited)
Christopher Lee
Narrator (voice)
Andreas Malandrinos
Proprietor of 'Magasin Gautier' (uncredited)
John Welsh
Senior Customs Officer (uncredited)