Harry Piel

Harry Peters, Kriminal-Assistent

Henry Lorenzen

Erich Wilke

Alfred Haase

Hildebrandt, Kriminalrat

Lissy Arna

Frau Woerden, Pensionsinhaberin

Ernst Legal

Emil Müller

Trude Hesterberg

Emmi Gärtner

Paul Westermeier

Emil Kruppack / William Hopkins

Else Reval