 | Richard Wyler als Dick Smart |
 | Margaret Lee als Lady Lister |
 | Rosana Tapajós als Jeanine Stafford |
| Flavia Balbi |
 | Tullio Altamura als Scienziato atomico |
| Elio Guerriero |
| Alfredo Leuti |
| Duccio Tessari | Writer |
| Ottavio Alessi | Writer |
| Giorgio Moser | Writer |
| Mario Nascimbene | Music |
| Giorgio Simonelli | Writer |
| Roberto Gerardi | Director of Photography |
| Franco Prosperi | Director |
