 | Robert De Niro als Alfredo Berlinghieri |
 | Gérard Depardieu als Olmo Dalcò |
 | Dominique Sanda als Ada Fiestri Paulhan |
 | Stefania Sandrelli als Anita Foschi |
 | Donald Sutherland als Attila Mellanchini |
 | Burt Lancaster als Alfredo Berlinghieri the Elder |
 | Francesca Bertini als Sister Desolata |
 | Laura Betti als Regina |
 | Werner Bruhns als Ottavio Berlinghieri |
 | Stefania Casini als Neve |
 | Sterling Hayden als Leo Dalcò |
 | Anna Henkel-Grönemeyer als Anita the Younger |
 | Ellen Schwiers als Amelia |
 | Alida Valli als Signora Pioppi |
 | Romolo Valli als Giovanni Berlinghieri |
 | Bianca Magliacca als Peasant Woman |
 | Giacomo Rizzo als Rigoletto |
| Pippo Campanini als Don Tarcisio |
| Paolo Pavesi als Alfredo as a Child |
| Roberto Maccanti als Olmo as a Child |
 | Antonio Piovanelli als Turo Dalcò |
 | Paulo Branco als Orso Dalcò |
 | Liù Bosisio als Nella Dalcò |
 | Maria Monti als Rosina Dalcò |
 | Anna Maria Gherardi als Eleonora |
 | Demesio Lusardi als Montanaro |
| Pietro Longari Ponzoni als Pioppi |
 | Angelo Pellegrino als Tailor |
 | José Quaglio als Aranzini |
 | Clara Colosimo als Woman who accuses Olmo |
 | Mario Meniconi |
 | Carlotta Barilli als Peasant |
| Odoardo Dall'aglio als Oreste Dalcò |
 | Piero Vida als Baroni |
 | Vittorio Fanfoni als Fascist |
| Alessandro Bosio als Fascist |
| Sergio Serafini als Young Fascist |
 | Patrizia De Clara als Stella |
 | Edda Ferronao als Stella's Daughter |
 | Winni Riva als Parisian Peasant |
 | Fabio Garriba als Peasant at Attila's execution |
 | Nazzareno Natale als Peasant at Attila's execution |
| Katerina Kosak als Parisian Peasant |
 | Kadrolsha Ona Carole als Vagabond (uncredited) |
 | Francesco D'Adda als Soldier on Train (uncredited) |
 | Allen Midgette als Vagabond (uncredited) |
| Salvator Mureddu als Chief of the King's Guards (uncredited) |
 | Mimmo Poli als Fascist (uncredited) |
| Tiziana Senatore als Regina as a Child (uncredited) |
| Ennio Morricone | Original Music Composer |
| Franco Arcalli | Editor |
| Ezio Frigerio | Art Direction |
| Bernardo Bertolucci | Director |
| Maria Paola Maino | Set Decoration |
| Vittorio Storaro | Director of Photography |
| Gitt Magrini | Costume Design |
| Alberto Grimaldi | Producer |
| Giuseppe Bertolucci | Writer |
| Bernardo Bertolucci | Writer |
| Franco Arcalli | Writer |
| Roberto Arcangeli | Foley |
| Angelo Novi | Still Photographer |
| H.F. Di Mauro | Producer |
| Maria Paola Maino | Production Design |
| Gianni Quaranta | Production Design |
| Paolo Borselli | Hairstylist |
| Iole Cecchini | Hairstylist |
| Giannetto De Rossi | Key Makeup Artist |
| Fabrizio Sforza | Makeup Artist |
| Maurizio Trani | Makeup Artist |
| Giuseppe Banchelli | Production Supervisor |
| Paolo De Andreis | Production Manager |
| Augusto Marabelli | Production Supervisor |
| Alessandro Mattei | Production Supervisor |
| Silvano Spoletini | Production Manager |
| Massimo Arcalli | Assistant Director |
| Suzanne Durrenberger | Second Assistant Director |
| Clare Peploe | Second Assistant Director |
| Gabriele Polverosi | Assistant Director |
| Peter Shepherd | Assistant Director |
| Giovanni Soldati | Second Assistant Director |
| Claudio Taddei | Third Assistant Director |
| Giuseppe Bertolucci | Assistant Director |
| Gianni Silvestri | Set Dresser |
| Fausto Ancillai | Sound Mixer |
| Roberto Arcangeli | Foley Artist |
| Gilles Barberis | Sound |
| Alessandro Biancani | Sound |
| Michael Billingsley | Sound Editor |
| Claudio Maielli | Sound |
| Giuliano Maielli | Sound Recordist |
| Alessandro Peticca | Sound Editor |
| Decio Trani | Boom Operator |
| Enzo Diliberto | Foley Artist |
| Giuseppe Alberti | Assistant Camera |
| Vittoria Guaita | Assistant Costume Designer |
| Gabriella Cristiani | Assistant Editor |
| Ugo De Rossi | Assistant Editor |
| Fernanda Indoni | Assistant Editor |
| Rosemarie Ruddies | Assistant Editor |
| Elvio Sordoni | Assistant Editor |
| Chris Balton | Assistant Editor |
| Enzo Ocone | Continuity |
