Vera Yanukova

Character: Sonka

Nadezhda Yermakovich

Character: Margarita Ivanovna

Mariya Goricheva

Character: Engineer Sadovskiy's mother

Mikhail Astangov

Character: Kostya Kapitan

Boris Dobronravov

Character: Director Gromov

Aleksandr Cheban

Character: Big official

Mikhail Yanshin

Character: Maks

Boris Tamarin

Character: Engineer Yuriy Sadovskiy

Gennadi Michurin

Character: Botkin

Pavel Olenev

Character: Sasha

Konstantin Nazarenko

Character: Limon

Aleksandr Antonov

Character: Vanya (uncredited)

Vasili Bokarev

Character: Camp superintendent (uncredited)

Mark Bernes

Character: Convict (uncredited)

Konstantin Gradopolov

Character: Pyzhov (uncredited)

Vladimir Dorofeyev

Character: Steamboat captain (uncredited)

Lev Ivanov

Character: Beret (uncredited)

Maria Klyuchareva

Character: Ninka (uncredited)

Serafim Koziminsky

Character: Petin (uncredited)

Vyacheslav Novikov

Character: Mitya (uncredited)

Elena Ponsova

Character: Fefela (uncredited)

Lyudmila Sadikova

Character: Convict (uncredited)

Vladimir Uralskiy

Character: Convict (uncredited)

A. Trushin

Character: (uncredited)

Aleksandr Duletov

Character: (uncredited)