Gigi Proietti as Prof. Enrico Coppola

Agostina Belli as Francesca De Renzi

Eleonora Giorgi as Piera

Christian De Sica as Daniele Vanturoli

Mario Scaccia as Mons. Alberoni

Adriana Asti as Irene Nobili

Franco Agostini as dott. Spina, assistente di Coppola

Quinto Parmeggiani as De Renzi

Gino Pernice as assistente

Mario Pisu as Ministro

Monica Strebel as Angela

Franco Angrisano as proprietario

Armando Bandini as antiquario

Oreste Lionello as automobilista

Enzo Maggio as professor Gabrielli

Mario Maranzana as il generale

Loredana Martínez as la moglie di Daniele

Salvatore Puntillo as professor De Marchis

Enzo Robutti as Matteis

John Karlsen as capo delle spie

Aldo Reggiani as

Pietro Tordi as

Aldo Rendine as

Tom Felleghy as

Roberto Antonelli as

Ettore Carloni as

Pupo De Luca as