Casts
Oldřich Lukeš
as Franta
Jaroslav Mareš
as Jan
Bohuš Hradil
as Karel Žíbek, Jan's father
Jana Dítětová
as Marie
František Kovářík
as Kolarik
Marie Nademlejnská
as Marie's mother
Miloslav Holub
as chief engineer Kotrna
Karel Houska
as Helmut
Stanislav Langer
as Director Jauris
Alois Dvorský
as Vinš
