출연진
무함마드 알리
Cassius Clay / Muhammad Ali
어니스트 보그나인
Angelo Dundee
John Marley
Dr. Ferdie Pacheco
Lloyd Haynes
Herbert Muhammad
Lucille Benson
Mrs. Fairlie
Sally Bondi
Bess
Malachi Throne
Payton Jory
Teddy Wilson
Joe The Gardener
Annazette Chase
Belinda Ali
Mira Waters
Ruby Sanderson
Chip McAllister
Cassius Clay aged 18
Drew Bundini Brown
Himself
로버트 듀발
Bill McDonald
David Huddleston
Cruikshank
Ben Johnson
Hollis
제임스 얼 존스
Malcolm X
Dina Merrill
Velvet Green
로저 E. 모슬리
Sonny Liston
Paul Winfield
Draft Lawyer
Richard Gullage
Commission Doctor
Arthur Adams
Cassius Clay Sr.