Claire Dodd

Julie Verlaine

Alice White

Didi Bonfee

Osgood Perkins

Martin

Jack La Rue

Lucien Vonaire

George E. Stone

Armand

Clark Williams

Paul De Brunay

William Faversham

Monsieur Fos / Professor Racque

Ferdinand Gottschalk

Chief Inspector Marotte

DeWitt Jennings

Louis Bardou

Helen Ware

Madame Rombiere

Frank Reicher

Auctioneer

Alphonse Ethier

Commissioner

Cecil Elliott

Cook