Hapless orchestra player becomes an unwitting pawn of rival factions within the French secret service after he is chosen as a decoy by being identified as a super secret agent.
Pierre Richard
as François Perrin
Bernard Blier
as Colonel Bernard Milan
Jean Rochefort
as Colonel Louis Toulouse
Mireille Darc
as Christine
Paul Le Person
as Perrache
Jean Carmet
as Maurice Lefebvre, Perrin's best friend
Colette Castel
as Paulette Lefebvre
Maurice Barrier
as Chaperon, Toulouse agent
Robert Dalban
as Coco, fake delivery man
Robert Castel
as Georghiu, Milan agent
Jean Obé
as Botrel, Milan agent
Jean Saudray
as Poucet, Toulouse agent