Secrets of Scotland Yard

Edgar Barrier

John Usher / Robert Usher

Stephanie Bachelor

Sudan Ainger

C. Aubrey Smith

Sir Christopher Pelt

Lionel Atwill

Waterlow

Henry Stephenson

Sir Reginald Meade

ジョン・アボット

Mortimer Cope

Martin Kosleck

Josef

Mary Gordon

Libby, the Housekeeper