About an investigation(1931)

Annabella

Greta Bienert

Jean Périer

Judge Conrad Bienert

Colette Darfeuil

Mella Zier

Florelle

Erna Kabisch

Pierre Richard-Willm

Paul Brent

Gaston Modot

Baumann, detective

Jacques Maury

Walter Binert

Paul Ollivier

Old Scherr

Robert Ancelin

Klatte

Bill Bocket

Concierge Zühlke

Pierre Franckh

Brann

Willy Rozier

Théo Tony

Laila Bensedira

Singer

Erich Kettelhut

Art Direction

Otto Baecker

Director of Photography

Konstantin Irmen-Tschet

Director of Photography

Viktor Gertler

Editor

Robert Siodmak

Director

Henri Chomette

Director, Dialogue

Raoul Ploquin

Dialogue

Erich Pommer

Producer

Fritz Thiery

Sound

Robert Liebmann

Writer

Ernst Hesse

Theatre Play

Max Alsberg

Theatre Play