Edward Judd
Arnold Bedford
Martha Hyer
Kate Callender
Lionel Jeffries
Joseph Cavor
Miles Malleson
Dymchurch Registrar
Gladys Henson
Nursing Home Matron
Hugh McDermott
Richard Challis
Betty McDowall
Margaret Hoy
Erik Chitty
Gibbs (uncredited)
Douglas Ives
Sparks (uncredited)
Peter Finch
Bailiff's Man (uncredited)
Marne Maitland
Dr. Tok, UN Space Agency (uncredited)
Laurence Herder
Glushkov, UN Space Agency
Paul Carpenter
Reporter from the 'Express' (uncredited)
John Forbes-Robertson
First Reporter (uncredited)
Kenneth Watson
Second Reporter (uncredited)
Sean Kelly
Col. Rice, Moon Landing Crew (uncredited)
Gordon Robinson
Sgt Andrew Martin, Moon Landing Crew (uncredited)
John Murray Scott
Cosmonaut Nevsky, Moon Landing Crew (uncredited)
Brook Williams
British Astronaut, Moon Landing Crew (uncredited)
George Hilsdon
Constable (uncredited)
Mary Maxfield
Nurse (uncredited)
Huw Thomas
Announcer (uncredited)
Valentine Dyall
Narrator (uncredited)
