Norbert Grupe (born August 25, 1940 – March 10, 2004), better known outside Germany by his stage name Wilhelm von Homburg, was a German boxer, actor, and professional wrestler known for his villainous supporting roles in various high-profile films of the 1980s and 1990s, including Vigo the Carpathian in Ghostbusters II, the henchman James in Die Hard, and Souteneur in Werner Herzog's Stroszek.