, 1h47 Directed byFriedrich Wilhelm Murnau GenresScience fiction, Horror ActorsConrad Veidt, Magnus Stifter, Bela Lugosi, Willy Kaiser-Heyl, Margarete Kupfer, Gustav Botz Rating72% Conrad Veidt plays Dr. Warren (the Dr. Jekyll character) who changes into Mr. O'Connor (a parallel of Mr. Hyde). This transformation is brought about, not by experimentation with chemicals as in Stevenson's original, but through the supernatural agency of a bust of Janus (the Roman god of the doorway), which Warren / O'Connor purchases in the opening sequence as a gift for his sweetheart, Jane Lanyon (Margarete Schlegel). When she refuses the gift, horrified, Warren / O'Connor is forced to keep the statuette himself.