The Scotland Yard Mystery

Gerald du Maurier

Commissioner Stanton

George Curzon

Dr. Charles Masters

Grete Natzler

Irene Masters

Leslie Perrins

John Freeman

Wally Patch

Detective Sergeant George

Henry Victor

Floyd

Paul Graetz

Paston

Belle Chrystall

Mary Stanton

Frederick Peisley

Kenneth Bailey

Herbert Cameron

Paxton