Character Name : Joseph Rouletabille

Original Name : Roland Toutain

Gender : Male

Character Name : Sainclair

Original Name : Léon Belières

Gender : Male

Character Name : Sonia

Original Name : Germaine Aussey

Gender : Female

Character Name : Amie de Rosy

Original Name : Théa Dory

Gender : Male

Character Name : George K. George

Original Name : Maurice Maillot

Gender : Male

Character Name : Rosy Bathory

Original Name : Lisette Lanvin

Gender : Female

Character Name : Hubner (as Duroy)

Original Name : Abel Duroy

Gender : Male

Character Name : Commissaire Moreau (uncredited)

Original Name : Léonce Corne

Gender : Male

Character Name : Bathory (uncredited)

Original Name : Sándor Góth

Gender : Male