Réalisation : Michael Mann

Musique : Pieter Bourke, Bill Brown, Kenneth 'Babyface' Edmonds, Marvin Gaye, Lisa Gerrard et R. Kelly

Casting : Will Smith (Cassius Clay/Muhammad Ali), Jamie Foxx (Drew 'Bundini' Brown), Jon Voight (Howard Cosell), Mario Van Peebles (Malcolm X), Ron Silver (Angelo Dundee), Jeffrey Wright (Howard Bingham), Mykelti Williamson (Don King), Jada Pinkett Smith (Sonji), Nona M. Gaye (Belinda), Michael Michele (Veronica), Joe Morton (Chauncy Eskridge), Paul Rodriguez (Dr. Ferdie Pacheco), Barry Shabaka Henley (Herbert Muhammad), Giancarlo Esposito (Cassius Clay, Sr.), Laurence Mason (Luis Sarria), LeVar Burton (Martin Luther King, Jr.), Albert Hall (Elijah Muhammad), David Cubitt (Robert Lipsyte), Ted Levine (Joe Smiley), Candy Ann Brown sous le pseudo Candy Brown Houston (Odessa), David Elliott (Sam Cooke), Shari Watson (Woman Singer), Malick Bowens (Joseph Mobutu), Michael Bentt (Sonny Liston), James Toney (Joe Frazier), Alfred Cole (Ernie Terrell), Charles Shufford (George Foreman), Rufus Dorsey (Floyd Paterson), Robert Sale (Jerry Quarry), Vincent Cook (Jimmy Ellis), Damien 'Bolo' Wills (Ken Norton), David Haines (Rudy Clay / Rahaman Ali), Victoria Dillard (Betty Shabazz), Brad Greenquist (Marlin Thomas), Morgana Van Peebles (Malcolm X's Daughter), Maya Van Peebles (Malcolm X's Daughter), Maestro Harrell (Young Cassius Clay), William Utay (The Doctor), Kim Robillard (Jimmy Cannon), David Purdham (Madison Square Guarden Announcer), Gailard Sartain (Gordon Davidson), Wade Williams (Lieutenant Jerome Claridge), Guy Van Swearingen (Induction FBI Man), Doug Hale (Judge Ingraham), LaDonna Tittle (Bundini's Landlady), Marc Grapey (Bob Arum), Herb Mitchell (Boxing Commissioner), Eddie Bo Smith Jr. (Malcolm's Bodyguard), Bobby Stuart sous le pseudo Bob Stuart (Thomas 15X Johnson), Patrick New (Room Service Guy), Ron O.J. Parson (Death Newsman), Ellis Williams sous le pseudo Ellis E. Williams (Family Photo Man), Bok Yun Chon sous le pseudo Bokyun Chun (Asian Cosmetologist), John G. Connolly (Assistant Director), Warner Saunders (Customer), Jack Reiss (Referee Arthur Mercante), Marty Denkin (Frazier Fight II Announcer), Tamara Lynch (Flight Attendant), Theron Benymon (Hampton House Announcer), Bill Plaschke (Miami Weigh-In Reporter), Steve Springer (Miami Weigh-In Reporter), Patrick M. Connolly (Announcer), Patrick C. Russell (Referee), Robert Byrd (Willie Reddick), Cedric Wills (Jersey Joe Walcott, Referee), Ronald A. DiNicola (Prosecutor), Moses Hollins (Man on Train), Daniel E. Gurevitz (Boxing Commission Reporter), Steven Randazzo (Reporter), Ray Bokhour (Reporter), Leonard Termo (Madison Square Garden Reporter), John Ortiz sous le pseudo Johnny Ortiz (Madison Square Garden Reporter), Mark Salem (New York Reporter), Sheldon Fogel (New York Reporter), Jim Gray (New York Reporter), Melvin Thomas (Harlem Neighbor), Natalie Carter (Harlem Neighbor), Reginald Footman sous le pseudo Reginald Barshem Footman (Harlem Neighbor), Poe Poe (Harlem Reporter), Mel Dick (Louisville Sponsoring Group), Kim Coleman sous le pseudo Kim Taylor Coleman (Lana Shabazz), Christian Stolte (Miami Cop), Vic Manni sous le pseudo Victor Manni (Dressing Room Weigh-In Guy), Will Gill Jr. (Dick Sadler), Sylvaine Strike (ORTF Interviewer), Dr. Denis Luposo (Kinshasa Reporter), Sharon Wilkinson (Rose Jennings), Carol Hatchett (Pointer Sister), Judith Mwale (Pointer Sister), Keabetswe Motsilanyane (Pointer Sister), Richard Katanga (Mobutu Aide / Military Aide), Thomas Kariuki Matheri (Lieutenant Nsakala), Larry Hazzard Sr. (Zack Clayton), Derrick Brown (Larry Holmes), Rommel Hyacinth (The Pilot), Graham Hopkins (London Banker), Daniel Janks (CIA Man), Bradford E. Lang (Black Pilot), Michael Dorn (Black Pilot), Dan Robbertse sous le pseudo Daniel Robbertse (Reporter in Zaire), Graham Clarke (Reporter in Zaire), Dimitri Cassar (Reporter in Zaire), Frank Notaro (Reporter in Zaire), Mark Mulder (Reporter in Zaire), David W. Hess (Reporter in Zaire), Henrikennyo Mukenyi (Bula), Nathaniel Malekane (Archie Moore), Millard Arnold (Doc Broadus), Edda Collier (Blonde French Reporter), Yi Lu Wei (Chinese Delegate), Lee Cummings (Hunter Thompson), Zaa Nkweta (Foreman Fight Announcer), Themba Gasa (Idi Amin), Andrew P. Jones (Don King's Aide), Marc Kulazite Mboli (Additional Aide to Mobutu), Cimanga Kalambay (Additional Aide to Mobutu), Jean Bikoi (Additional Aide to Mobutu), James Gilbert (Sparring Partner in Africa), Vincent De Paul (Roving Reporter), Jon A. Barnes (Ringside Photographer (uncredited)), Lionel D. Carson (Dr. King's driver), James Currie (Court Room Photographer), Martha Edgerton (Maya Angelou), Deborah Smith Ford (Party Guest (uncredited)), Ross Haines (News Cameraman), Eric Lichtenberg (Reporter (uncredited)), Bruce McGill (Bradley), Tracy Perry (Usher (uncredited)), Al Quinn (Boxing Trainer), Robert Standley (Ringside Photographer (uncredited)), Jack Truman (Reporter), Ray Uhler (Ringside Photographer (uncredited)), Larry Vigus (Times Ringside Photographer (uncredited)), John Wolfshohl (Ray 'Boom Boom' Mancini (uncredited))...