Ray Milland
Wing Commander Rudge
Acting
Bernard Lee
Flight Sergeant Harris
Acting
Kenneth Haigh
Anthony 'Tony' Winchester
Acting
Kenneth Fortescue
John Fletcher
Acting
Sean Kelly
Cadet Day
Acting
Helen Cherry
Louise Dawson
Acting
Anthony Newley
Roger Endicott
Acting
Leslie Phillips
Blake
Acting
John Le Mesurier
Commandant
Acting
Richard Wattis
Wilson
Acting
Kynaston Reeves
Air Minister
Acting
Richard Bennett
Cadet Phillips
Acting
Jan Brooks
Diana
Acting
M.E. Clifton James
Field Marshal Montgomery (uncredited)
Acting