The movie depicts the harsh realities of coal mining workers in a Moravian city (Ostrava).
| Actor | Role |
|---|---|
| RRudolf MyzetMachácek | Machácek |
| AAnatol MontalmareIng. Oblomský | Ing. Oblomský |
| JJiřina JanderováOlga | Olga |
| AAntonín Ludvík HavelIng. Skála | Ing. Skála |
| VVáclav MengerDobes | Dobes |
| BBlažena ČástkováHavlena's Sister | Havlena's Sister |
| MMíla HolekováKohoutka | Kohoutka |
| EEllen SimonováJarmila | Jarmila |
| EEduard ŠevčíkSiegfried Kohlmann | Siegfried Kohlmann |
| ZZdeněk VilímYoung Havlena | Young Havlena |
| EEduard BartošKonrád Havlena | Konrád Havlena |