Heiri Emirzade

as Gleb Chumalov

N. Bogdanova

as Dasha, Chumalov's wife

Aleksandr Dolinin

as Badyin

Mili Taut-Korso

as Polya Mekhova

Ivan Grankin

as Kleist, old engineer

Borys Zahorskyi

as Shrahmm, engineer

Teodor Brainin

as Gromada, metalworker