Peter Bechtel had to cut the costs by using his own house for scenes with the Wolf Mann and the Soko Team.
Christoph Leonhardt was first cast in the role of Marc Busan, but was later replaced by Franz Hofmann.
Mike Möller is a member of "Verein für Bären und Wolfschutzverband 1864". The Number 1864 is a reference to the Spaceship Reliant from Star Trek II: The Wrath of Khan (1982).