| Person | Type | Job | Role(s) |
|---|---|---|---|
 André Zwobada | Crew | Directing | Director |
 Albert Michel | Cast | Actor | Un employé au commissariat (uncredited) |
 Alfred Adam | Cast | Actor | Le décorateur (uncredited) |
 Auguste Bovério | Cast | Le directeur | |
 Bourvil | Cast | Actor | Un scientifique |
 Erno Crisa | Cast | Actor | L'homme sur le manège (uncredited) |
 François Joux | Cast | Actor | Le journaliste (uncredited) |
 Géo Forster | Cast | Actor | Man at the sidereal station (uncredited) |
 Georges Jamin | Cast | Actor | Gustave |
 Jacques Dufilho | Cast | Actor | Un bûcheron (uncredited) |
 Jean Dasté | Cast | Actor | Pépin |
 Jean Marchat | Cast | Actor | Robert Monier, le mari de Françoise |
 Julien Carette | Cast | Actor | Lucien Marchand, garçon de laboratoire |
 Madeleine Sologne | Cast | Actress | Françoise Monier, aeronaut |
 Marcel Maupi | Cast | Actor | Le policier |
 Maurice Marceau | Cast | Actor | Technician of the scientific institute (uncredited) |
Maurice Salabert | Cast | Le mécanicien-chef (uncredited) | |
 Paul Frankeur | Cast | Actor | Le premier bonimenteur |
 Paul Ollivier | Cast | Actor | L'oncle |
 Philippe Olive | Cast | Actor | Second smooth-talker |
Pierre Ferval | Cast | Le portier de l'institut scientifique (uncredited) | |
René Lacourt | Cast | Un bûcheron (uncredited) | |
 Richard Francoeur | Cast | Actor | Charles |
 Robert Arnoux | Cast | Actor | Le banquier Antoine |
 Suzanne Dantès | Cast | Actress | Camille |
 Suzanne Dehelly | Cast | Actress | Georgette Marchand |
Tony Jacquot | Cast | Le jeune marié | |
Joé Davray | Cast | (uncredited) | |
Hubert de Malet | Cast | Le vénusien | |
 Jean Morel | Cast | Actor | Commander |
 Émile Riandreys | Cast | Actor | Un consommateur au café (uncredited) |
 Lucien Desagneaux | Cast | Actor | Un homme à la gare sidérale (uncredited) |
Maurice Pierrat | Cast | Announcer (uncredited) | |
 Guita Karen | Cast | Venusian | |
Solange Guibert | Cast | La serveuse (uncredited) | |
Serge Laroche | Cast | Philippe | |
Violette Briet | Cast | Marie | |
Simone Allain | Cast | Béatrice | |
Luce Ferrald | Cast | Gaby | |
| Person | Type | Job | Role(s) |
