"Capt. Johnnie Gray is enlisted by Mr. J.G. Reeder to infiltrate a gang of forgers in Dartmoor jail on behalf of the Bank of England."
Peter Murray-Hill
as Capt. Johnnie Gray
Sally Gray
as Claire Kent
Gibb McLaughlin
as Mr. J.G. Reeder
Malcolm Keen
as Peter Kent
Leslie Perrins
as Jeffrey Legge (Maj. Jeffrey Floyd)
Sarah Seegar
as Lila Legge
D.J. Williams
as Emmanuel Legge
Rex Carvel
as Sir John Flaherty
Robert Cochran
as Det. Insp. Barker
Philip Ray
as Fenner
Bobbie Comber
as Gray's butler
Florence Groves
as Daisy, club desk-clerk
George Merritt
as Bert Stevens, club porter
Norman Lee
Director
Victor Kendall
Scenario Writer
Elizabeth Meehan
Treatment
Doreen Montgomery
Edgar Wallace
Novel
John Corfield
Producer
Ronnie Munro
Music
Eric Cross
Cinematography
Ted Richards
Editor
Jack Martin
Assistant Director
Duncan Sutherland
Art Department Manager
Frank Midgley
Sound Recordist
George Collins
Production Manager