"The story of a century: a decades-long second World War leaves plague and anarchy, then a rational state rebuilds civilization and attempts space travel."
Raymond Massey
as John Cabal / Oswald Cabal
Edward Chapman
as Pippa Passworthy / Raymond Passworthy
Ralph Richardson
as The Boss
Margaretta Scott
as Roxana / Rowena
Cedric Hardwicke
as Theotocopulos
Maurice Braddell
as Dr. Harding
Sophie Stewart
as Mrs. Cabal
Derrick De Marney
as Richard Gordon
Ann Todd
as Mary Gordon
Pearl Argyle
as Catherine Cabal
Kenneth Villiers
as Maurice Passworthy
Ivan Brandt
as Morden Mitani
Anne McLaren
as The Child
Patricia Hilliard
as Janet Gordon
Charles Carson
as Great Grandfather
Patrick Barr
as World Transport Official (uncredited)
Noel Brophy
as Irishman (uncredited)
John Clements
as The Airman (uncredited)
Anthony Holles
as Simon Burton (uncredited)
Allan Jeayes
as Mr. Cabal (uncredited)
Pickles Livingston
as Horrie Passworthy (uncredited)
George Sanders
as Celestial Body (uncredited)
Abraham Sofaer
as The Jew (uncredited)
Terry-Thomas
as Man of the Future (uncredited)
Charles Crichton
Editor
René Hubert
Costume Design
Cathleen Mann
William Cameron Menzies
Director
Alexander Korda
Producer
Arthur Bliss
Original Music Composer
Francis D. Lyon
Vincent Korda
Art Direction
H.G. Wells
Screenplay
Sam Williams
Novel
Georges Périnal
Director of Photography
John Armstrong
Muir Mathieson
Music Director
A.W. Watkins
Recording Supervision
Ned Mann
Special Effects
Frank Wells
Assistant Art Director
Robert Krasker
Camera Operator
Nigel Tangye
Technical Advisor
William Hornbeck
Supervising Editor
Edward Cohen
Lawrence W. Butler
Special Effects Assistant
David B. Cunynghame
Production Manager
Geoffrey Boothby
Assistant Director