| Cast list | | Richard Greene | as | Treasury Agent Lee Scott | | Anouk Aimée | as | Elena Vargas | | Michael Denison | as | British Agent Ricky Metcalfe | | José Nieto | as | Pierre, lead henchman | | Alfonso Estela | as | Henchman | | Conrado San Martín | as | Henchman | | Antonio Almorós | as | Lucien Remue, henchman | | G.H. Mulcaster | as | Col. Ingleby | | Robert Ayres | as | Mr. Dean, American Embassy superior | | Richard Warner | as | Inspector LeGrand, of the Surete | | John Warwick | as | Bryant, manager of the Sportadrome | | Philip Saville | as | Martin Scott | | Arnold Bell | as | Preventive Officer | | Olive Milbourn | as | Mrs. Ingleby |
| | Crew list: | | Lawrence Huntington (Director) | | Julio Salvador (Director) | | Lawrence Huntington (Writer) |
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