Сергей Вечеслов

Jim Ripl

Владимир Гардин

Jack Ripl, his brother

M. Volgina

Claire Ripl, his sister

Анна Чекулаева

Mary Ripl, Jack's wife

Vasiliy Orlov

Charlie, worker

Сергей Мартинсон

Dizer, artist in the music hall

Sergei Minin

Tom, worker

Николай Рыбников

Field Marshal

Pavel Poltoratskiy

Percy Grimm, minister

Vergiliy Renin

Hamilton Grimm

Nikolay Ablov

Rotterden, banker

Alexandra Khokhlova

Young lady with dolls

Daniil Vvedenskiy

(uncredited)

Nikolai Yarochkin

(uncredited)

Mikhail Doronin

Master (uncredited)

Vladimir Shnejderov

(uncredited)

Ivan Yudin

Engineer (uncredited)

Борис Шлихтинг

Guest at the restaurant (uncredited)

Георгий Всеволодов

(uncredited)

Иван Лавров

Butler in the polytechnical school (uncredited)

Nikolay Gorodnichev

First robot (uncredited)

Татьяна Райт

(uncredited)