Calificación
Reparto

Wilfrid Lawson
Mr. Goodman

Bernard Lee
Ferry Fane

Alastair Sim
'Soapy' Marx

Arthur Wontner
Colonel Redmayne

Linden Travers
Mary Redmayne

Henry Oscar
Joe Conner

Iris Hoey
Mrs. Elvery

Stanley Lathbury
Hawkins

Lesley Wareing
Veronica Elvery

John Turnbull
Superintendent Hallick

Richard Murdoch
Detective Lewis

Edward Lexy
Inspector Dobie

Richard George
Policeman (uncredited)

Irene Handl
Kitchen Maid

Kathleen Harrison
Parlour Maid

David Keir
Doctor