Maurice Risch as L'ivrogne de l'Obélisque

Pierre Tchernia as Un agent de l'Obélisque

Pierre Tornade as Monsieur Léon, obéliscologue

Bernard Haller as Edmond Fouvreaux

Michel Galabru as Black

Gérard Loussine as Jacques

Christian Spillemaecker as Pierre

Dany Saval as Fiotte

Pierre Desproges as Le présentateur TV

Jean-Marc Thibault as Le ministre

Jean-Roger Caussimon as Le jardinier

Paul Préboist as White

Jean Le Poulain as Klakmuf

Michel Constantin as Grougnache

Jean-Claude Bouillon as Le pilote

Roger Carel as Grigor Sokolodovenko

Jacques Fabbri as Le commissaire en uniforme

Henri Virlogeux as Le passant égaré

Patrick Préjean as Le plombier / Le marchand de musique

Mario David as Un agent au barrage

Coluche as L'agent double 098 / 099

Philippe Nicaud as Le chauffeur du bus détourné

Jean Gaven as L'agent sans panier à salade

Pierre Mondy as Amédée Gonflard

Daniel Gélin as Broutechoux

Fred Pasquali as Hardy Petit

Fanny Cottençon as Carole Hardy Petit

Xavier Gélin as Théo Courant

Frédéric de Pasquale as Le chef CRS

Mylène Demongeot as Malvina

Gérard Hernandez as Asti Spumante

Jacques Rouland as Le facteur

Georges Géret as Capitaine Fauderche

Jean Richard as Maigret

Jean-Pierre Darras as Socrate

Olivier Lejeune as un usager du bus détourné