 Sergei VecheslovJim Ripl | Jim Ripl |
 Vladimir GardinJack Ripl, his brother | Jack Ripl, his brother |
| MMaria VolginaClaire Ripl, his sister | Claire Ripl, his sister |
| AAnna ChekulaevaMary Ripl, Jack's wife | Mary Ripl, Jack's wife |
| VVasiliy OrlovCharlie, worker | Charlie, worker |
 Sergei MartinsonDizer, artist in the music hall | Dizer, artist in the music hall |
 Serhii MininTom, worker | Tom, worker |
 Pavel PoltoratskiyPercy Grimm, minister | Percy Grimm, minister |
| VVergiliy ReninHamilton Grimm | Hamilton Grimm |
| NNikolay AblovRotterden, banker | Rotterden, banker |
 Alexandra KhokhlovaYoung lady with dolls | Young lady with dolls |
 Daniil Vvedenskiy(uncredited) | (uncredited) |
 Nikolai Yarochkin(uncredited) | (uncredited) |
 Mikhail DoroninMaster (uncredited) | Master (uncredited) |
 Vladimir Shnejderov(uncredited) | (uncredited) |
 Ivan YudinEngineer (uncredited) | Engineer (uncredited) |
 Boris ShlikhtingGuest at the restaurant (uncredited) | Guest at the restaurant (uncredited) |
 Georgy Vsevolodov(uncredited) | (uncredited) |
| IIvan LavrovButler in the polytechnical school (uncredited) | Butler in the polytechnical school (uncredited) |
 Nikolay GorodnichevFirst robot (uncredited) | First robot (uncredited) |
| TTatyana Rayt(uncredited) | (uncredited) |
