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