Cast & crew
Il socio invisibile (1939)
Directed by Roberto Roberti Written by Roberto Roberti, Guido Rispoli
Cast
| Egisto Olivieri | |
| Gemma Bolognesi | |
| Regina Bianchi | |
| Mariella Lotti | Un'educanda |
| Guglielmo Sinaz | |
| Giulio Alfieri | |
| Erminio Spalla | Il 'Matto' |
| Carlo Romano | Prado |
| Jone Romano | Direttrice |
| Licia D'Alba | |
| Mario Gallina | |
| Virgilio Riento | Maggiore Benekin |
| Guido Celano | |
| Sergio Tofano | Borsa |
| Evi Maltagliati | Diva |
| Fedele Gentile | |
| Clelia Matania | |
| Felice Romano | |
| Nicola Maldacea | |
| Clara Calamai | Prado |
| Vasco Creti |
Crew
| Gustav Abel | Production Design |
| Roberto Roberti | Screenplay |
| Alfredo Manzi | Production Design |
| Michele Scalera | Producer |
| Roberto Roberti | Director |
| Umberto Mancini | Music |
| Genaro Prieto | Novel |
| Dolores Tamburini | Editor |
| Guido Rispoli | Screenplay |
| Salvatore Scalera | Producer |
| Massimo Terzano | Director of Photography |