"The favourite for the big race is nobbled and suspicion falls on the owner. His secret admirer proves it wasn't him."
Greta Gynt
as Wenda Panniford
John McCallum
as Capt. Garry Anson
Raymond Lovell
as Lord Willie Panniford
Sonia Holm
as Lady Mollie Panniford
Leslie Dwyer
as Sam Hillcott
Charles Victor
as John Dory
Felix Aylmer
as Lord Forlingham
Sydney King
as Tony
Noel Howlett
as Lawyer
Barry Jones
as Sir John Garth
Claude Bailey
as Lord Inspond
Desmond Roberts
as Rainby
Diana Dors
as Hawkins
Cyril Chamberlain
as Customs Official
O.B. Clarence
as Old Gentleman at Epsom
M.E. Clifton James
as Car Driver at Petrol Station (uncredited)
Constance Smith
as Airport Attendant (uncredited)
Douglas Peirce
Associate Producer
Antony Darnborough
Producer
W.T. Partleton
Makeup Artist
Claude Hitchcock
Boom Operator
Arthur Wilkinson
Music
Cyril J. Knowles
Director of Photography
John Elphick
Art Direction
B. C. Sewell
Sound Director
Bill Salter
Sound Recordist
Edgar Wallace
Novel
Julie Harris
Costume Design
Al Rhind
Reginald H. Wyer
Jean Barker
Editor
Geoffrey Kerr
Screenplay
George Provis
Supervising Art Director
Arthur Crabtree
Director
Muir Mathieson
Conductor
Basil Keys
Assistant Director
Charles Knott
Supervising Editor
Len Harris
Camera Operator
Arthur Alcott
Production Controller