| Cast list | | James Garner | as | Ben Morris | | Eva Renzi | as | Alison Duguesne | | George Kennedy | as | Sammy Ryderbeit | | Nigel Green | as | Dennis McCune (incorrectly given in credits as 'Crowley') | | Michael Ansara | as | Raul Ortega | | George Rose | as | Captain Stopes | | Fabrizio Mioni | as | Coronel Celaya | | Vincent Beck | as | Sanchez | | Val Avery | as | Rodriguez | | Robert Carricart | as | Benavides | | Natividad Vacío | as | Figueroa | | Nacho Galindo | as | Hotel Proprietor | | Pepito Galindo | as | Bellboy | | Victor Millan | as | Helicopter Pilot | | Than Wyenn | as | Customs Agent |
| | Crew list: | | Delbert Mann (Director) | | Alan Williams (Writer) | | Charles Williams (Writer) |
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