Jean Le Poulain as John Mac Lesby / Jules Trombonne

Maria Pacôme as Lady Lucy Guilvaillant

Lucie Dolène as Dorothy Baker

Jean-Simon Prévost as Arthur Gordon de Baskerville

Francis Joffo as Lieutenant Campbell

Annick Le Goff as Polly Baker

Claude Lefebvre as Robert

Annick Roux as Jennifer

Donald Cardwell as The Devil