Michel Simon
Professor Charles Buisson
Brigitte Auber
Gisèle, student of Buisson
Henri Génès
Lucien Mosca, boss of Ruban Bleu
Germaine Kerjean
Mrs. Rédéri
Anne Campion
The determined trafficker
Philippe Mareuil
Pierre-Dominique, aka 'Pépé'
Robert Lombard
Maurice, Buisson's assistant
Georges Galley
Patrice
