as Professor Strangerson
as Robert Darzac
as Frédéric Larsan
as Mathilde Strangerson
as Joseph Rouletabille
as Jean Sainclair
as Daddy Jacques
as Mr. Bernier
as Mrs. Bernier
as Judge Marquet
as Mr. Maleine
as Mr. Mathieu
as Mrs. Mathieu
as The Green Man