 Edward JuddArnold Bedford | Arnold Bedford |
 Martha HyerKate Callender | Kate Callender |
 Lionel JeffriesJoseph Cavor | Joseph Cavor |
 Miles MallesonDymchurch Registrar | Dymchurch Registrar |
 Norman BirdStuart | Stuart |
 Gladys HensonNursing Home Matron | Nursing Home Matron |
 Hugh McDermottRichard Challis | Richard Challis |
 Betty McDowallMargaret Hoy | Margaret Hoy |
 Erik ChittyGibbs (uncredited) | Gibbs (uncredited) |
 Douglas IvesSparks (uncredited) | Sparks (uncredited) |
 Peter FinchBailiff's Man (uncredited) | Bailiff's Man (uncredited) |
 Marne MaitlandDr. Tok, UN Space Agency (uncredited) | Dr. Tok, UN Space Agency (uncredited) |
 Laurence HerderGlushkov, UN Space Agency | Glushkov, UN Space Agency |
 Paul CarpenterReporter from the 'Express' (uncredited) | Reporter from the 'Express' (uncredited) |
| JJohn Forbes-RobertsonFirst Reporter (uncredited) | First Reporter (uncredited) |
| KKenneth WatsonSecond Reporter (uncredited) | Second Reporter (uncredited) |
| SSean KellyCol. Rice, Moon Landing Crew (uncredited) | Col. Rice, Moon Landing Crew (uncredited) |
| GGordon RobinsonSgt Andrew Martin, Moon Landing Crew (uncredited) | Sgt Andrew Martin, Moon Landing Crew (uncredited) |
| JJohn Murray ScottCosmonaut Nevsky, Moon Landing Crew (uncredited) | Cosmonaut Nevsky, Moon Landing Crew (uncredited) |
 Brook WilliamsBritish Astronaut, Moon Landing Crew (uncredited) | British Astronaut, Moon Landing Crew (uncredited) |
| GGeorge HilsdonConstable (uncredited) | Constable (uncredited) |
| MMary MaxfieldNurse (uncredited) | Nurse (uncredited) |
| HHuw ThomasAnnouncer (uncredited) | Announcer (uncredited) |
 Valentine DyallNarrator (uncredited) | Narrator (uncredited) |
