Gordon Harker

Inspector Elk

Hartley Power

'Chicago Dale' Sandford

Rène Ray

Lela Oaks

Cyril Smith

Maggs

Charles Lefeaux

Golly Oaks

Una O'Connor

Mum Oaks

Meinhart Maur

'Dutchy' Alkmann

George Hayes

Dandy Lane

Charles Carson

Chief Commissioner

Aubrey Mallalieu

Banker

Maurice Elvey

Director

Gerald Elliott

Screenplay

Ian Hay

Screenplay

Edgar Wallace

Novel