Claude Rains

Dr. Jack Griffin

Gloria Stuart

Flora Cranley

William Harrigan

Dr. Arthur Kemp

Henry Travers

Dr. Cranley

Una O'Connor

Jenny Hall

Forrester Harvey

Herbert Hall

Holmes Herbert

Chief of Police

E. E. Clive

Constable Jaffers

Dudley Digges

Chief Detective

Harry Stubbs

Inspector Bird

Donald Stuart

Inspector Lane

Merle Tottenham

Millie

Robert Adair

Detective Thompson (uncredited)

Edgar Barrier

Radio Announcer (uncredited)

Ted Billings

Villager Playing Darts (uncredited)