
"The Secret a Million Kept!"
Wartime tale of a group of British scientists efforts to develop the first radar system. They did it just in time for it to be used in the Battle of Britain against the might of the Nazi Luftwaffe. Without it the little island could well have been overrun.
Prof. Heatherville

Prof. Laxton-Jones

Dr. McVitie

Dr. Dainty
Mr. Watlington

Sir Duncan Wills

Dr. Wainwright
Lt. Cmdr. Lowther

Mrs. Watlington

Mrs. Laxton-Jones
Mrs. McVitie

Mrs. Dainty
Jack Arnold

Squadron Leader Sowerby

Group Capt. Aspinall

Flight Sgt. Cox

Warrant Officer

Air Marshal Cotter
Wives' Escort Officer

Sqdn. Ldr. Slatter
Sqdn. Ldr. Buckley
Flt. Lt. Argylle

Flt. Lt. Norton

Flying Officer Davies
Air Vice-Marshal
Wing Cdr. Allen

Flying Officer Ogden
Daphne Adams

Penelope Birkenshaw
Phyllis Hammond
WAAF Flight Sergeant

WAAF Teller
Major

Captain
Paratroop Sergeant (as Bill Rowbotham)

1st Commando
2nd Commando
3rd Commando
4th Commando
5th Commando
6th Commando
Dr. Klemmerhahn
Lt. Hense
1st Sentry
2nd Sentry
Mrs. Arnold

Sir Desmond Prosser
Sir Nicholas Hathaway

Old Retainer

1st Club Member

2nd Club Member

3rd Club Member
BBC Announcer (voice)
Bomb Aimer (uncredited)

(uncredited)

Man at Dance (uncredited)