Director
Eugène Lourié
DIRECTOR
Stars (in credits order)
Gene Evans
Steve Karnes
André Morell
Prof. James Bickford
John Turner
John Duncan
Leigh Madison
Jean Trevethan
Jack MacGowran
Dr. Sampson - the Paleontologist
Maurice Kaufmann
Mini Submarine Officer
Henri Vidon
Tom Trevethan
Leonard Sachs
Scientist
John Adams
P.C. Spotting Monsteruncredited
Joyce Adams
Laboratory Technicianuncredited
Chris Adcock
Fleeing Man in Crowduncredited
Andy Alston
Fleeing Manuncredited
Neal Arden
TV Newscasteruncredited
Jack Armstrong
Police Inspectoruncredited
Alan Beaton
Officer at Conferenceuncredited
Michael Beint
Navy Lieutenantuncredited
Paul Beradi
Man Listening to Car Radiouncredited
Ernest Blyth
Scientist at Conference on Atomic Researchuncredited
Wallace Bosco
Janet Bradbury
Daughter listening to the radiouncredited
Anna Cameron
Recording Secretary at Conferenceuncredited
Tony Castleton
Sailor in Operations Roomuncredited
Tom Chatto
Priestuncredited
Bill Cummings
James Dyrenforth
Sir Charles Mooreuncredited
Bill Edwards
Radar Operatoruncredited
Max Faulkner
PLA Radio Operatoruncredited
Norman Fisher
Mourner at Funeraluncredited
Chick Fowles
Father Listening to Radiouncredited
Arthur Gomez
Fisherman on Quaysideuncredited
Neil Hallett
Helicopter Pilotuncredited
Aidan Harrington
Connaught Hotel Guestuncredited
Reginald Hearne
Police Sergeant Delivering Photouncredited
George Holdcroft
Scientist Asking 'Who Is It?'uncredited
Arthur Howell
Police Officer Using Patrol Car Radiouncredited
Alastair Hunter
Doctoruncredited
Ann Jay
Mother Listening to Radiouncredited
Philip Johns
Soldieruncredited
Patrick Jordan
Photo Lab Aideuncredited
Michael Kelly
Helicopter PB7 Observeruncredited
Lloyd Lamble
Adm. Summersuncredited
Howard Lang
Naval Commanderuncredited
Dickey Luck
Ferry Crewmanuncredited
Fred Machon
Jack Mandeville
David McEvoy - Reporteruncredited
André Maranne
French Radio Officeruncredited
John More
Army Officer Evacuating Citizensuncredited
Lola Morice
Barmaiduncredited
Michael Mulcaster
Derren Nesbitt
Radio Officeruncredited
Fred Nicholas
Welderuncredited
Charles Price
Allison - Marine Guarduncredited
Ernie Rice
Pat Ryan
Officer in Situation Roomuncredited
Gerik Schjelderup
Norwegian Radio Officeruncredited
Ian Selby
Frank Sieman
Farmeruncredited
Peter Sinclair
Trawler Captainuncredited
Julian Somers
Admiral Summersuncredited
Guy Standeven
Naval Officer in Situation Roomuncredited
Philip Stewart
Scientific Conference Memberuncredited
Jim Tyson
Publicanuncredited
Joe Wadham
Police Driveruncredited
Georgina Ward
Girl Listening to Car Radiouncredited
John Wilder
Naval Officeruncredited