Cast
Willoughby Gray
Tom Harding
Arthur Young
Scientist
Kenneth Edwards
Charles Dixon
Jack Gwillim
Representative of Parliament (uncredited)
피터 샐리스
Soldier (uncredited)
Patricia Neal
Susan North
Helmut Dantine
The Stranger
Derek Bond
Arthur Walker
Nigel Green
Second Police Officer
Cyril Luckham
Dr. Meinard
Stanley Van Beers
General
John Le Mesurier
Official/Man at Desk (uncredited)
Hugh Moxey
Secretary of the Interior (uncredited)