Michael Rennie
Stefan
Patricia Medina
Zofia
Milly Vitale
Anna
David Knight
Tadek
Esmond Knight
Stricker
Christopher Lee
Brunner
John G. Heller
Fritz
Carl Jaffe
General
Peter Madden
Stanislaw
George Pravda
Karewski
Gordon Sterne
Margraaf
Carl Duering
Scientist
Harold Siddons
Master Bomber
George Pastell
Eryk
Henri Vidon
Konim
Stanley Zevic
Kubala
Gregory Dark
Franus
Jan Conrad
Wlodek
Tom Clegg
Anton
Robert Raikes
Dakota Pilot
Valerie White
German Forewoman
Geoffrey Chater
Min. of Defence
Julian Somers
Reichsführer
Jack Armstrong
German Scientist (uncredited)
Paul Beradi
German Scientist (uncredited)
Bob Bryan
German Scientist (uncredited)
Jack Cooper
German Scientist (uncredited)
George Curtis
German Scientist (uncredited)
Harry Drew
German Scientist (uncredited)
Patrick Halpin
German Scientist (uncredited)
Jack Hetherington
German Scientist (uncredited)
Jack Mandeville
German Scientist (uncredited)
Richard Neller
German Scientist (uncredited)
Jim Tyson
German Scientist (uncredited)
James Ure
German Scientist (uncredited)
Gertan Klauber
SS Guard (uncredited)
Martin Lyder
SS Officer (uncredited)
Richard Shaw
SS Officer (uncredited)
Jack Mandeville
German Soldier (uncredited)
Norman Mitchell
German Officer (uncredited)
Richard Pearson
Senior RAF Officer (uncredited)
Martin Shaban
Dentist (uncredited)
Norman Shelley
Senior Army Officer (uncredited)
Emile Stemmler
Forced Labour (uncredited)
Frank Thornton
British Scientist (uncredited)
Patrick Waddington
Air Marshall (uncredited)
La bataille des V.1
Released