Director
John Boulting
DIRECTOR
Roy Boulting
Writer
Frank Harvey
WRITER
Paul Dehn
James Bernard
Stars (in credits order)
Barry Jones
Professor Willingdon
André Morell
Superintendent Folland
Olive Sloane
Goldie
Sheila Manahan
Ann Willingdon
Hugh Cross
Stephen Lane
Joan Hickson
Mrs. Peckett
Ronald Adam
The Prime Minister
Marie Ney
Mrs. Willingdon
Wyndham Goldie
Rev. Burgess
Russell Waters
Det. Davis
Martin Boddey
Gen. Willoughby
Frederick Allen
Self - BBC Newsreader
Victor Maddern
Private Jackson
Geoffrey Keen
Alf
Merrill Mueller
Self - American Commentator
Joss Ackland
Station Policeman (uncredited)
Gerald Andersen
Bit Part (uncredited)
Jean Anderson
Mother at Train Station (uncredited)
Jack Arrow
Policeman (uncredited)
Patrick Baring
Gordon Bell
Esme Beringer
Van Boolen
John Boxer
Army Mechanic (uncredited)
Ernest Clark
Barber (uncredited)
Maurice Colbourne
Ministry Official (uncredited)
Michael Conry
Basil Cunard
Civil Defence Warden at Bus Queue (uncredited)
Glyn Davies
Rupert Davies
Robert Dean
Arthur Dibbs
Man in Sauna (uncredited)
Charles Doran
Colin Douglas
Soldier in house search (uncredited)
Edwin Ellis
Alec Faversham
Louise Gainsborough
Willoughby Gray
Chris Halward
Bit Part - operations room telephonist (uncredited)
Mona K. Harrison
Helen Harvey
Walter Horsbrugh
Peter Humphries
Elaine Inescourt
John Kevan
Major Fanshawe (uncredited)
James Knight
Mr. Cooper (Pawnbroker) (uncredited)
Sam Kydd
Soldier in House Search (uncredited)
Denis Lehrer
Gordon Littmann
Kenneth Luckman
Molly Lumley
Evacuee (uncredited)
Martin Lyder
Man on Bus (uncredited)
Patrick Macnee
Eve Martell
Geoffrey Matthews
Charles Maunsell
Jack May
First Newspaper Seller (uncredited)
Henry McGee
Soldier Marching Next to Jackson (uncredited)
Malcolm Russell
George Self
Bruce Seton
Brigadier Grant (uncredited)
Leonard Sharp
Fred - Barman (uncredited)
Bert Simms
Museum Patron (uncredited)
Arthur Skinner
Man in Background (uncredited)
John Snagge
BBC Announcer (uncredited)
George Spence
Graham Squire
John Stamp
Marianne Stone
Woman in Phone Box (uncredited)
John Stratton
George Street
Newspaper Editor (uncredited)
Robert Brooks Turner
Railwayman Pasting Labels (uncredited)
Dorothy Vernon
Michael Ward
Cast Member (uncredited)
John Warren
Barry Wicks
John Wilder
Detective Sergeant Carter (uncredited)
Ian Wilson
Sandwich-Board Man (uncredited)
John Witty