A naive clerk finds himself involved in the theft of a ring containing a dangerous liquid.
| Actor | Role |
|---|---|
 Walter ChiariWalter Palaccioni | Walter Palaccioni |
 Lucia BosèClara Montesi | Clara Montesi |
 Aroldo TieriCarlo | Carlo |
 Virgilio RientoProprietario Negozio | Proprietario Negozio |
 Eduardo CiannelliCapo delle spie (as Edward Ciannelli) | Capo delle spie (as Edward Ciannelli) |
| JJackie FrostOlga Voronowska | Olga Voronowska |
| AAmedeo DejanaNot listed | Not listed |
| EEugenio CancelliNot listed | Not listed |
| EEnrico LeuriniNot listed | Not listed |