"The famous detective and his trusty side-kick, Tinker, are called in by the War Office to find some important papers that were stolen from a man killed during an air raid."
David Farrar
as Sexton Blake
Manning Whiley
as Raoul Sudd
Dennis Arundell
as Johann Sudd
John Varley
as Tinker
Betty Huntley-Wright
as Nobby
Gordon McLeod
as Inspector Venner
Kathleen Harrison
as Mrs. Bardell
Cyril Smith
as Belford
Magda Kun
as Yvonne
Ferdy Mayne
as Slant-Eyes
Charles Farrell
as Skipper
Roddy Hughes
as Ferraby
Philip Godfrey
as James Baird
Tony Arpino
as Torch
Charles Rolfe
as Mario Carloni
Billy Howard
as Policeman
John Powe
as Cockney Chink
Jack Vyvyan
as Hawkins
Henry Wolston
as Assistant Commissioner
David Keir
as Charlie Kunn
Elsie Wagstaff
as Mrs. Baird
Robert Brooks Turner
as Constable
Alfred Harris
as Hospital Doctor
Margo Johns
as Hospital Nurse
Jean Simmons
as Eva Watkins
Mark Jones
as Barman
John Harlow
Director
Writer
Louis H. Jackson
Producer
Percival Mackey
Music
Vi Burdon
Editor
C. Wilfred Arnold
Art Direction
Geoffrey Faithfull
Director of Photography