Ugo Tognazzi as On. Giuseppe Tritoni

Claude Dauphin as Il Presidente della Repubblica

Duilio Del Prete as Monsignor Sartorello

Giuseppe Maffioli as Colonnello Barbacane

Carla Tatò as Marcella Bassi-Lega

François Périer as On. Gigino Di Cori

Lino Puglisi as On. Li Masi

Pino Zac as Armando Caffè

Tino Bianchi as On. Mazzante

Antonino Faà di Bruno as Colonnello Ribaud

Vincenzo Falanga as Tarcisio "Ciccio" Introna

Giancarlo Fusco as Colonnello Furas

Barbara Herrera as Contessa Amelia Di Amatrice

Renzo Marignano as Tenente Branzino

Camillo Milli as Colonnello Aguzzo

Alberto Postorino as il colonnello strabico

Gianni Solaro as On. Cicero

Pietro Tordi as Generale Bassi-Lega

Max Turilli as Colonnello Turzilli

Salvatore Biliardo as Colonnello Automatikos

Bruno Boschetti as

Pietro Biondi as Professor Pube

Giuseppe Castellano as Franz Cavicchia

Luciano Catenacci as benzinaio

Mico Cundari as On. Ferlingeri

Vittorio De Bisogno as figlio di DI Cori

Belisario De Matteis as Generale Pariglia

Nino Formicola as Ulisse

Mario Frera as ufficiale di polizia

Rosanna Gherardi as Cristiana Tallone

Enzo Guarini as

Enzo La Torre as

Carla Mancini as

Mauro Misul as Urbini

Franco Moraldi as Alfonsone

Lino Murolo as

Loris Zanchi as On. Bertoni

Luigi Lenner as Ing. Stainer

Francesco Anniballi as cameriere

Angelo Boscariol as

Gianni Baghino as

Ugo Ballester as New President of Italy (uncredited)