Wood ya shawo kan Lugosi, a lokacin matalauci ne kuma mai shan miyagun ƙwayoyi, ya bayyana a cikin fim din. An harbe al'amuran Lugosi a Jack Miles Studios a Los Angeles. An bayar da rahoton cewa an biya shi $ 5000 don rawar, kodayake wasu labaran sun bayyana ainihin adadin ya kasance $ 1000 kawai. An ba da Lugosi a matsayin "The Scientist", wani hali wanda manufarsa ba ta da tabbas. Yana aiki a matsayin mai ba da labari amma ba ya ba da labari mai dacewa da makircin; wannan aikin an tanada shi ne ga babban mai ba da labari na fim din, Timothy Farrell. Wannan fim ne kawai Wood ya jagoranci amma bai samar da shi ba. Wood ya buga wasan kwaikwayo, amma a karkashin sunan "Daniel Davis". Sa'an nan kuma budurwarsa, Dolores Fuller, ta buga budurwar Glen / fiancée. Barbara Wood daga baya ya koma Glen ko Glenda a cikin littafinsa mai suna The Killer Killer (1963).
"Masanin Kimiyya"