Gian Maria Volonté
Enrico Mattei
Luigi Squarzina
liberal journalist
Peter Baldwin
William McHale
Renato Romano
journalist
Franco Graziosi
Minister of State partecipations
Gianfranco Ombuen
Mr. Ferrari, the engineer
Elio Jotta
head of the Committee of Inquiry
?
Luciano Colitti
Irnerio Bertuzzi
Edda Ferronao
Mrs. Mattei
Accursio Di Leo
Sicilian character