Doktor Knock Details Casts Posters Title Doktor Knock Release Date 1996-01-01 Runtime 01 Hours 34 Minutes Genres TV Movie Comedy Production Companies ORF, BR Production Countries Austria, Germany Gert Voss... Dr. Knock... Veronica Ferres... Dr. Kai Richardi... Sophie Rois... Marianne... Martin Feifel... Simon... Christa Berndl... Friedl... Original Size (2000x3000)