Cast e produzione
-
Edward JuddArnold Bedford - Martha HyerKatherine "Kate" Callender
- Lionel JeffriesJoseph Cavor
- Betty McDowallMargaret Hoy
- Miles MallesonRegistrar
- Gladys HensonNursing Home Matron
- Hugh McDermottRichard Challis
- Erik ChittyGibbs (uncredited)
- Gordon RobinsonSgt. Andrew Martin (uncredited)
- Laurence HerderGlushkov (uncredited)
- Marne MaitlandDr. Tok (uncredited)
- Ray HarryhausenRegista
- Nathan H. JuranRegista
- Charles H. SchneerProduzione
- Ray HarryhausenProduzione
- Nigel KnealeSceneggiatura
- H. G. WellsSceneggiatura