A group of schoolchildren come upon an alien from Venus, and help him against a gang of criminals who are trying to kidnap him.
Marcia Monolescue
Sumac
Gillian Harrison
Greta
Fella Edmonds
Rodney
Andrew Motte-Harrison
Adolphus
Tony Lyons
Number Thirteen
Hilda Fenemore
Mother
Donald Gray
Headmaster
Patrick Boxill
Mr. Pole
Raymond Rollett
Number One
Patrick Connor
Number Twenty-Nine
Henry Purvis
Number Seven
Peter Bathurst
Bank Manager
