A bomb dooms the first space satellite, manned by a selfless crew, a stowaway reporter (Lois Maxwell) and a mad scientist (Donald Wolfit).
Cmdr. Michael Haydon
Kim Hamilton
Prof. Merrity
Jimmy Wheeler
Larry Noble
Lefty
Professor Blandford
Captain Ross
Barbara Noble
Ellen
Tony
Reporter
Reporter
Reporter
Colonel Galloway
General Barnett
Professor Bechstein
Thomas the Watchman (uncredited)
Reporter (uncredited)
Reporter (uncredited)
Reporter (uncredited)
Reporter (uncredited)
Reporter (uncredited)
Reporter (uncredited)
Reporter (uncredited)
Simmons the Technician (uncredited)
Technician (uncredited)
Technician (uncredited)
Young Girl (uncredited)
Gatekeeper (uncredited)
Official (uncredited)
Jack the Barman
Jack the Barman (uncredited)
