Il segreto inviolabile AZ movies.
| Directing | Julio Flechner de Gomar | Director |
| Writing | Piero Tellini | Writer |
| Writing | Ernesto Lucente | Writer |
| Writing | Piero Tellini | Screenplay |
| Writing | Augusto Mazzetti | Screenplay |
| Writing | Julio Flechner de Gomar | Screenplay |
| Camera | Václav Vích | Director of Photography |
| Editing | Duilio A. Lucarelli | Editor |
| Sound | Nuccio Fiorda | Music |
| Sound | Gioacchino Angelo | Music |
| Art | Italo Cremona | Production Design |
| Production | Attilio Fattori | Producer |
| Production | Vincenzo Genesi | Producer |
| Art | Italo Cremona | Set Decoration |