Annabella

Anne-Marie

Pierre Richard-Willm

The 'inventor'

Paul Azaïs

The 'boxer'

Pierre Labry

The 'peasant'

Abel Jacquin

The 'detective'

Christian Gérard

The 'lover'

Jean Murat

The 'thinker'

Valentine Camax

Old lady on the phone (uncredited)

André Carnège

General (uncredited)

Enrico Glori

Businessman (uncredited)

Jean Marconi

(uncredited)

Odette Talazac

Madame Tuche, inventor's maid (uncredited)

Raymond Bernard