 Marcello MastroianniGeorge A. Custer | George A. Custer |
 Catherine DeneuveMarie-Hélène de Boismonfrais | Marie-Hélène de Boismonfrais |
 Michel PiccoliBuffalo Bill | Buffalo Bill |
 Philippe NoiretGen. Terry | Gen. Terry |
 Ugo TognazziMitch | Mitch |
 Paolo VillaggioThe CIA agent | The CIA agent |
 Serge ReggianiThe Mad Indian | The Mad Indian |
 Alain CunySitting Bull | Sitting Bull |
 Marco FerreriThe Reporter (uncredited) | The Reporter (uncredited) |
 Franco FabriziTom (as Franco Fabrizzi) | Tom (as Franco Fabrizzi) |
 Franca BettoiaRayon de Lune (as Franca Bettoja) | Rayon de Lune (as Franca Bettoja) |
| DDaniele DublinoGovernment Official | Government Official |
 Darry CowlMaj. Archibald | Maj. Archibald |
 Monique ChaumetteSister Lucie | Sister Lucie |
 Jacques RobiollesNot listed | Not listed |
 Gianmarco TognazziFiglio di Mitch e Raggio di Luna | Figlio di Mitch e Raggio di Luna |
| HHenri PiccoliSitting Bull's Father | Sitting Bull's Father |
| Gianmarco TognazziFiglio di Mitch e Raggio di Luna (uncredited) | Figlio di Mitch e Raggio di Luna (uncredited) |
 Bertrand TavernierUn homme du pouvoir (uncredited) | Un homme du pouvoir (uncredited) |
