George Baker

as Sir Hilary Bray

as NASA Engineer (uncredited)

as Captain Benson

as Joe Harrop

as Dr. Nigel Barnes

as Martin Delambre

as Fletcher

as Bill Randall

as Sir Walter Bullivant

as Dr Jim Alcott

as Adjutant

as Lord Edward

as Charlie

as Altman

as Cooper

as Maurice Dodson

as Hugo Ross

as Higgins

as Login

as Britten

as Rev. Morell