Alfred Travers
Director Louis H. Jackson
Producer

Herbert Lom
Jules de Lisle / Georges de Lisle Phyllis Dixey
Penny aka Gloria Gregg Terence de Marney
Mike Bergen Ronald Frankau
Vincent Barney Abraham Sofaer
French Judge Eugene Deckers
French Ringmaster Cromwell Brothers
Trapeze Act (as The Cromwell Brothers) Ernst Ulman
Ben Williams
Clarence Wright
Beryl Measor
Harold Berens

Stephen Clarkson
Screenplay Vivienne Adès
Screenplay Alfred Travers
Screenplay Renalt Capes
Original Story Hans May
Music Director Stanley Black
Conductor Eva Catchpole
Sound Editor Harold V. King
Sound Director James Wilson
Director of Photography Gerald Moss
Camera Operator Cecil Thornton
Sound Recordist Monica Kimick
Editor