कलाकार व पडद्यामागील कलाकार
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विल स्मिथCassius Clay/Muhammad Ali - जेमी फॉक्सDrew "Bundini" Brown
- जॉन वोइटHoward Cosell
- Mario Van PeeblesMalcolm X
- Ron SilverAngelo Dundee
- Jeffrey WrightHoward Bingham
- Mykel T. WilliamsonDon King
- Jada Pinkett SmithSonji
- Michael MicheleVeronica
- Joe MortonChauncy Eskridge
- Paul RodriguezDr. Ferdie Pacheco
- Bruce McGillBradley
- Barry Shabaka HenleyHerbert Muhammad
- Giancarlo EspositoCassius Clay, Sr.
- Laurence MasonLuis Sarria
- LeVar BurtonMartin Luther King, Jr.
- Albert HallElijah Muhammad
- Nona GayeBelinda Ali
- David CubittRobert Lipsyte
- टेड लेव्हाइनJoe Smiley
- David ElliottSam Cooke
- Shari WatsonWoman Singer
- Michael BenttSonny Liston
- Malick BowensJoseph Mobutu
- Alfred ColeErnie Terrell
- Charles ShuffordGeorge Foreman
- Michael Mannदिग्दर्शक
- A. Kitman Hoनिर्माता
- Michael Mannनिर्माता
- Paul Ardajiनिर्माता
- Jon Petersनिर्माता
- James Lassiterनिर्माता
- Howard Binghamनिर्माता
- Graham Kingनिर्माता
- Stephen J. Riveleलेखक
- Christopher Wilkinsonलेखक
- Eric Rothलेखक
- Michael Mannलेखक