Paul Bildt

as Friedrich Naumann, Kriminalkommissar

Elly Burgmer

as Auguste Naumann, seine Frau

Agathe Poschmann

as Anna, seine Tochter

Claus Holm

as Karl Lorenz, Kriminal-Anwärter

Hans Leibelt

as Hugo Lembke, Kriminalrat

Walter Gross

as Der „flotte Willi“

Erwin Biegel

as Köppke

Friedhelm von Petersson