as Mr. Arnold
as Dr. David Turet (uncredited)
as Radio Announcer
as Professor Newton
as Shopkeeper (uncredited)
as Paul de Roche
as The Tailor (uncredited)
as Omar
as Mr. Vail
as Uncle Goliath
as Monsieur Le Noir
as Dr. Grasser
as Signor Giuseppe Morello
as Dr. Merton
