The character of Gregor Gubanow, played by Klaus Kinski, was named after producer Horst Wendlandt's birth name, 'Gregor Gubanov'.
This is the first film of Rialto's Edgar Wallace Series to feature the famous voice before the opening credits: "Hallo, hier spricht Edgar Wallace" (Hello, this is Edgar Wallace speaking). This film and the following one, "Der Zinker" (1964), included a version of the voice spelling Wallace's Name wrong. From "Zimmer 13" (1964) on, a new version (with correct spelling), recorded by Director Alfred Vohrer himself, was used until the End of the Series in 1972.
With approximately 4.000.000 admissions during its official German theatrical run, this is the most successful German Edgar Wallace-Film out of 37 Productions between 1959 and 1972.