Jim Ripl
Jack Ripl, his brother
Claire Ripl, his sister
Mary Ripl, Jack's wife
Charlie, worker
Dizer, artist in the music hall
Tom, worker
Field Marshal
Percy Grimm, minister
Hamilton Grimm
Rotterden, banker
Young lady with dolls
(uncredited)
(uncredited)
Master (uncredited)
(uncredited)
Engineer (uncredited)
Guest at the restaurant (uncredited)
(uncredited)
Butler in the polytechnical school (uncredited)
First robot (uncredited)
(uncredited)