Diavolo's bandits fight Napoleon's troops and so King Ferdinand IV, the Neapolitan king, makes Fra Diavolo a Colonel. In the meantime the bandit also falls in love with Marietta, the king's illegitimate child.
| Directing | Mario Soldati | Director |
| Production | Valentino Brosio | Producer |
| Camera | Mario Montuori | Director of Photography |
| Sound | Nino Rota | Original Music Composer |
| Editing | Mario Serandrei | Editor |
| Art | Ottavio Scotti | Production Design |
| Costume & Make-Up | Vittorio Nino Novarese | Costume Design |
| Writing | Pierre Lestringuez | Story |
| Writing | Pierre Lestringuez | Screenplay |
| Writing | Vittorio Nino Novarese | Story |
| Writing | Vittorio Nino Novarese | Screenplay |
| Writing | Mario Soldati | Story |
| Writing | Mario Soldati | Screenplay |
| Writing | Nicola Manzari | Story |
| Writing | Nicola Manzari | Screenplay |
| Sound | Franco Ferrara | Conductor |
| Art | Gino Brosio | Set Decoration |
| Sound | Umberto Picistrelli | Sound |
| Production | Anna Davini | Unit Manager |
| Directing | Cesare Olivieri | First Assistant Director |
| Costume & Make-Up | Michele Contessa | Assistant Costume Designer |
| Costume & Make-Up | Amato Garbini | Makeup Artist |
| Costume & Make-Up | Teresa Petitti | Hairstylist |
| Production | Giuseppe Bordogni | Production Manager |