At school, Luca is falsely accused of a prank and wishes he had a father who would defend him in front of the headmaster. His father is dead, but he meets a sea captain who is willing to pretend to be his parent. Then Captain Andrea falls in love with Luca's mother, textile mill worker Maria. Before things go right, Andrea needs to deal with an ex-girlfriend and a smuggling plot.
| Actor | Role |
|---|---|
 Amedeo NazzariAndrea, capitano del mercantile | Andrea, capitano del mercantile |
 Yvonne SansonMaria Martinez | Maria Martinez |
 Mercedes MonterreyLola | Lola |
 José GuardiolaGiacomo | Giacomo |
 Miguel GilLuca Martinez | Luca Martinez |
 Miguel Ángel RodríguezCarlo, il direttore della scuola | Carlo, il direttore della scuola |
| JJavier DastiIl maestro di aritmetica | Il maestro di aritmetica |
 Ángel CaleroPrimo commissario | Primo commissario |
| MMariano AlcónPadre de Pietro | Padre de Pietro |
 María RivasOlga | Olga |
| MMario MorenoNot listed | Not listed |
| SStanislaw DomolaskiNot listed | Not listed |
| JJoaquín VidrialesUn gangster | Un gangster |
| MMaría AlcarriaNot listed | Not listed |
| AAlfred BrowneNot listed | Not listed |
| EEugenio ChemelalNot listed | Not listed |
 Emilio CigoliMedico in contatto radio | Medico in contatto radio |
 Aurora de AlbaNot listed | Not listed |
 Alfonso GodáGiovanni | Giovanni |
| GGaspar 'Indio' GonzálezUbriaco | Ubriaco |
| MMario Umberto MartinelliNot listed | Not listed |
| AAntonio MartínNot listed | Not listed |