A secret agent works with a scientist to recover documents outlining a new formula to make fuel.
| Actor | Role |
|---|---|
 Fred BeirJack Morris | Jack Morris |
 Gérard BlainRobert Gibson | Robert Gibson |
 Alberto DalbésRenard | Renard |
 Pier AngeliHélène Blanchard | Hélène Blanchard |
 Gianni SolaroFiksch | Fiksch |
| AAndré LoruguesNot listed | Not listed |
| MMario LanfranchiNot listed | Not listed |
| IIgnazio DolceNot listed | Not listed |
| MMario MagnoliaNot listed | Not listed |
 Attilio SeveriniNot listed | Not listed |
| BBruno ArièNot listed | Not listed |
 Franco DaddiNot listed | Not listed |
 Luigi CiavarroNot listed | Not listed |
 Liana OrfeiNot listed | Not listed |
 Nando OrfeiNot listed | Not listed |
| RRinaldo OrfeiNot listed | Not listed |
 Silvia SolarJanette | Janette |
| GGuido BarlocciSuitcase Man (uncredited) | Suitcase Man (uncredited) |
 Pietro Ceccarelli(uncredited) | (uncredited) |
 Alberigo DonadeoCircus Worker (uncredited) | Circus Worker (uncredited) |