| Person | Type | Job | Role(s) |
|---|---|---|---|
 Andrea Crisanti | Crew | Art | Production Design |
 Antonio Sarno | Crew | Production | Unit Manager |
Enzo Porcelli | Crew | Production | Production Assistant |
 Francesco Rosi | Crew | Directing | Director, Screenplay, Story |
Franco Carretti | Crew | Costume & Make-Up | Costume Design |
 Franco Cristaldi | Crew | Production | Producer |
Giovanni Fiore Coltellacci | Crew | Camera | Assistant Camera |
 Pasqualino De Santis | Crew | Camera | Director of Photography |
 Piero Piccioni | Crew | Sound | Original Music Composer |
 Ruggero Mastroianni | Crew | Editing | Editor |
 Tonino Guerra | Crew | Writing | Screenplay, Story |
Mario Morigi | Crew | Sound | Sound Mixer |
Mario Bramonti | Crew | Sound | Sound |
Giovanni Manganelli | Crew | Production | Production Secretary |
Gian Maria Avetta | Crew | Production | Unit Manager |
Mario Cimini | Crew | Camera | Camera Operator |
Marcello Mastrogirolamo | Crew | Camera | Assistant Camera |
Franca Invernizzi | Crew | Directing | Script Supervisor |
Lea Mazzocchi | Crew | Editing | Assistant Editor |
 Gino Millozza | Crew | Production | Production Manager |
Nerio Minuzzo | Crew | Writing | Co-Writer |
Tito De Stefano | Crew | Writing | Co-Writer |
Fulvio Bellini | Crew | Writing | Novel |
Enzo Consolini | Crew | Production | Administration |
Alessandro Previdi | Crew | Writing | Novel |
Marco Guarnaschelli | Crew | Directing | First Assistant Director |
Accursio Di Leo | Cast | Actor | Sicilian character |
 Aldo Barberito | Cast | Actor | Mauro De Mauro |
 Camillo Milli | Cast | Actor | TV journalist |
Dario Michaelis | Cast | Carabinieri officer | |
 Edda Ferronao | Cast | Actress | Mrs. Mattei |
 Edy Biagetti | Cast | Actor | Mattei's bodyguard (uncredited) |
Elio Jotta | Cast | head of the Committee of Inquiry | |
Francesco Rosi | Cast | Actor | Self (uncredited) |
 Franco Graziosi | Cast | Actor | Minister of State partecipations |
Furio Colombo | Cast | Actor | Mattei's assistant |
 Gian Maria Volonté | Cast | Actor | Enrico Mattei |
 Gianfranco Ombuen | Cast | Mr. Ferrari, the engineer | |
 Jean Rougeul | Cast | Actor | French journalist |
 Luigi Squarzina | Cast | liberal journalist | |
 Néstor Garay | Cast | Actor | journalist |
 Peter Baldwin | Cast | Actor | William McHale |
 Renato Romano | Cast | Actor | journalist |
Sennuccio Benelli | Cast | Self / journalist | |
Terenzio Cordova | Cast | police officer | |
 Vittorio Fanfoni | Cast | Actor | journalist |
Felice Fulchignoni | Cast | Sicilian character | |
Giuseppe Lo Presti | Cast | Sicilian character | |
Alessio Baume | Cast | "Time" journalist | |
Arrigo Benedetti | Cast | Self | |
Luciano Colitti | Cast | Irnerio Bertuzzi | |
Umberto D'Arrò | Cast | Self / journalist | |
Thyraud De Vosjoli | Cast | Self | |
Gianni Farneti | Cast | Self / journalist | |
Salvo Licata | Cast | Self / journalist | |
Andrea Artoni | Cast | Self / flight assistant (uncredited) | |
Blaise Morrissey | Cast | American oilman | |
Michele Pantaleone | Cast | Self | |
Ferruccio Parri | Cast | Self (archival footage) | |
Giuseppe Rosselli | Cast | Self / journalist | |
Ugo Zatterin | Cast | Self / journalist | |
Nino Drago | Cast | journalist | |
| Person | Type | Job | Role(s) |
