A French animal lover protects a dog and a mouse wanted by Soviet scientists for their space program.
Léon Martin
Marguerite Martin
Chazot
Dina, interpreter
Soviet ambassador
Gendarmerie adjutant
Marie
Doctor
Soviet cultural attaché
Villager
Mireille Martin
Paul de Grandlieu
Professor Papov
Hubert, government delegate
Mayor of Lésigny
