For much of the cast, this was there only film appearance since they were not professional actors. Henriette Gérard who played the vampire was a French widow, Jan Hieronimko who played the village doctor was a Polish journalist, Rena Mandel who played Gisèle was an artist's model. Even Julian West (real name: Baron Nicolas de Gunzburg) who played Allan Grey, was French-born member of Russian nobility who agreed to finance the film in exchange for the leading part. (He later emigrated to America where he became a powerful fashion journalist and mentor to designers like Calvin Klein.)
The dank doctor's surgery and its abandoned, dirty look covered in cobwebs was said to be achieved by the director breaking jam jars on the floor then leaving the room shut off for a little over a month to attract various bugs and insects.
Carl Theodor Dreyer preferred to work with non-professional actors, and most of the actors which appear in this film were amateurs that he met on the streets of Paris. The only professional actors in the film were Sybille Schmitz and Maurice Schutz.
The movie was dubbed into English, French, and German versions for different markets. Its actors came from varied national and linguistic backgrounds, and so in certain versions it appears that some of them are speaking their lines phonetically. Additionally, the film was shot fairly cheaply using an experimental sound process, and the technical quality of the soundtrack leaves much to be desired. Most versions in distribution through the late 1990s (including those on video) are composites of the German and French versions, which differ for cuts made by the censors in each of those countries. As of 2004, no prints of the English version are known to circulate.