photos news photos news A Dark Lantern 1920 60 min Drama, Romance Although loved by a respectable doctor, a society-girl is fascinated by a prince and follows him to Rome. When he reveals himself in his true colours, she has a nervous breakdown and her faithful doctor restores her to health - and to himself. watched want to watch oscars director John S. Robertson news ✕ loading… photos ✕ cast Alice Brady Katherine Dereham Reginald Denny Prince Anton of Argovinia Edgard Varèse Count Wilhelm Brandon Hurst Colonel Dereham J James L. Crane Dr. Garth Vincent Marie Burke Lady Peterborough D David Monterno Graf-Wilhelm C Carolyn Irwin Mrs. Hally