Secrets of Scotland Yard
VoltarElenco
Edgar BarrierJohn Usher / Robert Usher
Stephanie BachelorSudan Ainger
C. Aubrey SmithSir Christopher Pelt
Lionel AtwillWaterlow
Henry StephensonSir Reginald Meade
John AbbottMortimer Cope
Martin KosleckJosef
Mary GordonLibby, the Housekeeper