Wilfrid Lawson as Mr. Goodman

Bernard Lee as Ferry Fane

Alastair Sim as 'Soapy' Marx

Arthur Wontner as Colonel Redmayne

Linden Travers as Mary Redmayne

Henry Oscar as Joe Conner

Iris Hoey as Mrs. Elvery

Stanley Lathbury as Hawkins

Lesley Wareing as Veronica Elvery

John Turnbull as Superintendent Hallick

Richard Murdoch as Detective Lewis

Edward Lexy as Inspector Dobie

Richard George as Policeman (uncredited)

Irene Handl as Kitchen Maid

Kathleen Harrison as Parlour Maid

David Keir as Doctor

Jack Lambert as Warder Joyce

Bill Shine as (uncredited)

Jack Vyvyan as Police Constable (uncredited)

Ben Williams as Police Photographer (uncredited)