France Anglade
— Clémentine Bellus
Michel Serrault
— Maître Brunet
Pierre Doris
— Gaston Bellus
Philippe Noiret
— Edgar Hoover
Jacques Dufilho
— Spanish maid
Noël Roquevert
— FBI Concierge
Adrienne Servantie
— Yvonne Bellus
Max Montavon
— FBI elevator operator
Michel Galabru
— FBI engineer
Jean Tissier
— Versigny
Jean Richard
— Auguste
Claude Nicot
— Alain
Guy Lux
— Self
Bernard Dumaine
— Television director
Dany Logan
— Self - guest who twists to the music of Mozart
André Badin
— Concierge of Passy
Rita Pavone
— Self (uncredited)
Francis Blanche
— Nuisance at the Miss ceremony (uncredited)
Charles Bayard
— Passerby who says "Quelle époque" (uncredited)
Marcel Loche
— Member of the FBI board of directors (uncredited)
Léon Zitrone
— Self (archive footage) (uncredited)
Jean-Claude Michel
— Narrator (voice) (uncredited)