Madeleine Sologne
Françoise Monier, aeronaut
Jean Marchat
Robert Monier, Françoise's husband
Julien Carette
Lucien Marchand, laboratory boy
Paul Frankeur
First smooth-talker
Robert Arnoux
Banker Antoine
Simone Allain
Béatrice
Auguste Bovério
Director
Violette Briet
Marie
Jean Dasté
Pépin
Luce Ferrald
Gaby
Richard Francœur
Charles
Tony Jacquot
Young bridegroom
Georges Jamin
Gustave
Guita Karen
Venusian
Serge Laroche
Philippe
Hubert de Malet
Venusian
Marcel Maupi
Policeman
Jean Morel
Commander
Philippe Olive
Second smooth-talker
Paul Ollivier
Uncle
Suzanne Dantès
Camille
Suzanne Dehelly
Georgette Marchand
Bourvil
Scientist
Alfred Adam
Decorator (uncredited)
Erno Crisa
Man on the Merry-Go-Round (uncredited)
Joé Davray
(uncredited)
Lucien Desagneaux
Man at the sidereal station (uncredited)
Jacques Dufilho
Lumberjack (uncredited)
Pierre Ferval
Doorman of the scientific institute (uncredited)
Géo Forster
Man at the sidereal station (uncredited)
Solange Guibert
Waitress (uncredited)
François Joux
Journalist (uncredited)
René Lacourt
Lumberjack (uncredited)
Maurice Marceau
Technician of the scientific institute (uncredited)
Albert Michel
Police station employee (uncredited)
Maurice Pierrat
Announcer (uncredited)
Émile Riandreys
Consumer at the café (uncredited)
Maurice Salabert
Chief mechanic (uncredited)