Gabriel Signoret

as L'inspecteur Béchoux

as Monsieur Lescuyer

as Un Invité (Prologue) (as Signoret)

as Mr. Soupe

as Father Chinelle

as Le procureur Montfort

as Marquis of Barfleur

as Lord Sidley

as Apothecary Bourrachon

as Director of the boarding school