Diễn viên
Gertan Klauber
Code Clerk
Anthony Baird
Guard
Fred Haggerty
Dr. Crow's Assistant (uncredited)
Barbara Windsor
Agent Daphne Honeybutt
Bernard Cribbins
Agent Harold Crump
Charles Hawtrey
Agent Charlie Bind
Victor Maddern
Milchmann
Renée Houston
Funhouse Madame
Kenneth Williams
Agent Desmond Simpkins
Norman Mitchell
Native Policeman / Algerian Gent
Tom Clegg
Funhouse Doorman
Tutte Lemkow
Man in Marketplace (uncredited)
Jill Mai Meredith
Cigarette Girl
Nora Gordon
Elderly Woman (uncredited)
Jim Dale
Agent Carstairs
Eric Pohlmann
Emile Fauzak, the "Fat Man"
Frank Forsyth
Professor Stark
John Bluthal
Head Waiter / Dr. Crow (voice)
Eric Barker
The Chief
Richard Wattis
Cobley
Judith Furse
Dr. Crow