as Joshua Lambert
as Pedro
as Chilion
as Gunman (uncredited)
as Dr. Armand Zola / Worker (voice) (archive footage)
as Commentator
as Professor Zeiner
as Hunter
as 1st Lt. Corona
as 2nd Communications Man
as Mallory
as Larry Devon
as Jake (uncredited)
as Mark Adams
as Wilson
as Bernard Kincaide
as Newscaster
as Floyd Gaines
as Andy Rivers
as Dr. Johnny Windhurst
as Crewman (uncredited)
as Dirk Shuster
as Dr. Zola / Worker (voice)
as P.A. Announcer (voice)
as Jack Thomas
as Gentz
as Absalom
as Policeman
as Dr. Seneca Beaulac
