Professor Charles Buisson
Gisèle, student of Buisson
Lucien Mosca, boss of Ruban Bleu
Mrs. Rédéri
The determined trafficker
Pierre-Dominique, aka 'Pépé'
Maurice, Buisson's assistant
Patrice
Mrs. Buisson
Henriette, washroom attendant
The indecisive snob
Russian Princess
Woman from Paris
Poupette, presenter of the show
Woman from Paris
Woman from Paris
Woman from Paris
Woman from Paris
Woman from Paris
Woman from Paris
Cloakroom attendant
Florist
Inspector Corbin
Self
Self
Self
Self
Self
Self
Narrator
Magda, the pregnant dancer (uncredited)
Cowboy (uncredited)
Young female client of Ruban Bleu (uncredited)
Self (uncredited)
Self (uncredited)
Policeman at Quai des Orfèvres (uncredited)
Arsène the toothless (uncredited)
Woman with stomach ache (uncredited)
Police officer (uncredited)
Young customer of Ruban Bleu (uncredited)