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

William Kahn

Director

William Kahn

Producer