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

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

Enzo La Torre

Carla Mancini

Mauro Misul

as Urbini

Franco Moraldi

as Alfonsone

Lino Murolo

Loris Zanchi

as On. Bertoni

Luigi Lenner

as Ing. Stainer

Francesco Anniballi

as cameriere

Angelo Boscariol

Gianni Baghino

Ugo Ballester

as New President of Italy (uncredited)