"When a measles epidemic forces the temporary closing of a child care center, the son of a film star and her estranged husband, a concert pianist, is mistakenly delivered to a touring musician."
Audrey Hepburn
as Melissa Walter
Ray Ventura
as Self
Henri Génès
as Julien
Georges Lannes
as Detective / Radio boss
Philippe Lemaire
as Jacques
Danielle Godet
as Jacqueline
John van Dreelen
as Rudy Walter
Marcel Dalio
as Poulos, imprésario
Suzanne Guémard
as Mrs. Chatenay-Maillard
Nicole Jonesco
as Germaine Dubois
Jackie Sardou
as Mrs. Bindinelli
André Luguet
as Chatenay-Maillard
André Dalibert
as Brigadier
Alain Bouvette
as Friend of Marinette
Michel André
as Announcer
Gérard Buhr
as
Lucien Callamand
as Doorman
René Bourbon
as Festival director
Geneviève Morel
as Neighbor
Nicolas Amato
as Controller
Marcel Meral
Max Elloy
as Max Elloy
Jeannette Batti
as Marinette
Y. Orrigo
as Johnny Walter, Melissa and Rudy's baby
Edmond Audran
as (uncredited)
Daniel Cauchy
as Fan of Melissa (uncredited)
Raoul Curet
as Member of the "Quat' Jeudis" (uncredited)
André Fuma
Roger Lagier
Jules Munshin
as Bullfighter in Musical Melange with Antoine (cameo) (uncredited)
Primerose Perret
as Baby goods saleswoman (uncredited)
Germaine Reuver
as Concierge (uncredited)
Charles Verstraete
as Musician in Ray Ventura's orchestra (uncredited)
Jeanne Véniat
as Marinette's mother (uncredited)
Les Quat'Jeudis
Jean Boyer
Director
Jean Mandaroux
Production Design
Jacques Costet
Costume Design
Paul Misraki
Original Music Composer
Alex Joffé
Writer
Robert Giordani
Cécilia Malbois
Script Supervisor
Producer
Fanchette Mazin
Editor
Lina Gallet
Makeup Artist
Jean Paul Ulysse
Charles Suin
Director of Photography
Serge Veber
Dialogue
Jean Darvey
Production Manager
Antoine Archimbaud
Sound