Diretor/a
Anton Leader
DIRETOR/A
Elenco (na ordem dos créditos)
Ian Hendry
Dr. Tom Llewellyn
Alan Badel
Dr. David Neville
Barbara Ferris
Susan Eliot
Alfred Burke
Colin Webster
Sheila Allen
Diana Looran
Ralph Michael
Defense Minister
Patrick Wymark
Commander
Martin Miller
Prof. Gruber
Harold Goldblatt
Harib
Patrick White
Mr. Davidson
André Mikhelson
Russian official
Bessie Love
Mrs. Robbins, Mark's Grandmother
Clive Powell
Paul
Yoke-Moon Lee
Mi Ling
Roberta Rex
Nina
Gerald Delsol
Aga Nagolo
Mahdu Mathen
Rashid
Frank Summerscale
Mark
Jack 'Kid' Berg
Officer(uncredited)
Tom Bowman
Senior American Army Officer(uncredited)
Eddie Boyce
Soldier(uncredited)
Ian Cullen
Joe Dunne
Ernest Fennemore
Peter Fontaine
Army Officer(uncredited)
Patrick Halpin
Security Man(uncredited)
Tristram Jellinek
Philip Johns
Annette Kerr
Scientist(uncredited)
Arnold Lee
Chinese Agent(uncredited)
Martin Lyder
Cabbie(uncredited)
Alan MacNaughtan
Senior Army Officer(uncredited)
Frank Maher
Detective(uncredited)
Terence Maidment
Richard Marner
Russian Embassy official(uncredited)
Leo McKern
Inspector(uncredited)
Tony O'Leary
Rudolph Offenbach
Russian Switchboard Operator(uncredited)
Bill Rayment
Man at Door(uncredited)
Michael Robbins
Frank Sieman
Hedger Wallace
Sergeant(uncredited)