출연진
George Cole
George Archibald Potts
Oskar Homolka
Zekov
Nadia Gray
Tania
Wilfrid Hyde-White
Sir Hubert Wells
Richard Wattis
Barnes
Irene Handl
Mrs. Tidmarsh
크리스토퍼 리
Russian Agent (uncredited)
Frederick Leister
Prime Minister
Frederick Valk
Rakov
Geoffrey Sumner
Pike
Ronald Adam
Barworth Controller
Edwin Styles
Barworth Superintendent
Kynaston Reeves
Barworth Director
Ernest Jay
Professor Layton
Michael Medwin
Smedley
Henry Hewitt
Minister of Health
Walter Horsbrugh
1st Cabinet Minister
Anthony Shaw
2nd Cabinet Minister
Tim Turner
1st Reporter
Gibb McLaughlin
Schoolmaster
Michael Balfour
Jersey Sailor