Der Fall Grehn

Conrad Barden

Mahler Jan Grehn

Gernot Bock-Stieber

Globetrotter Diaz Ramson

Ernst Pittschau

Professor Herkdal

August Rotter

van Gylhem

Reinhold Schünzel

Kriminalrat Rat Anheim

Lo Vallis

Cläre Pontda

Otto Collot

William Kahn

Writer, Director, Producer