穆罕默德·阿里
Muhammad Ali
饰：Himself
欧内斯特·博格宁
Ernest Borgnine
饰：Angelo Dundee
Sally Bondi
饰：Bess
Richard Gullage
Richard Gullage
饰：Commission Doctor
Arthur Adams
饰：Cassius Clay Senior
Dorothy Meyer
饰：Odessa Clay
Rahaman Ali
饰：Himself
Howard Bingham
Howard Bingham
饰：Himself
理查德·文彻
Richard Venture
饰：Colonel
Stack Pierce
Stack Pierce
饰：Johnson
W. Youngblood Muhammad
W. Youngblood Muhammad
饰：Himself
Ben Medina
Ben Medina
饰：Ronnie
保罗·曼迪
Paul Mantee
饰：Carrara
斯基普·霍梅尔
Skip Homeier
饰：Major
Lloyd Wells
饰：Himself
George Garro
George Garro
饰：Mr. Curtis
大卫·柯来龙
David Clennon
饰：Captain
George Cooper
饰：Lawyer
Ernie Wheelwright
饰：Bossman Jones
Pat Patterson
Pat Patterson
饰：Himself
詹姆斯·盖蒙
James Gammon
饰：Mr. Harry
Gene Kilroy
Gene Kilroy
饰：Himself
Toni Crabtree
饰：Hooker
Sally Gries
Sally Gries
饰：Sponsor's Wife
Elizabeth Marshall
Elizabeth Marshall
饰：Sponsor's Wife
Don Dunphy
饰：Commentator
Fernand A. Larrieu Jr.
Fernand A. Larrieu Jr.
饰：Grocer
Nai Bonet
Nai Bonet
饰：Suzie Gomez
Harold Conrad
Harold Conrad
饰：Himself
Alberto Martín
Alberto Martín
饰：Doctor
Ray Holland
饰：Reporter
Lucille Benson
饰：Mrs. Fairlie
德鲁·邦迪尼·布朗
Drew Bundini Brown
饰：Himself
Joe Bugner
饰：Archive footage)
Annazette Chase
饰：Belinda Ali
罗伯特·杜瓦尔
Robert Duvall
饰：Bill McDonald
洛伊德·海恩斯
Lloyd Haynes
饰：Herbert Muhammad
大卫·霍德尔斯顿
David Huddleston
饰：Cruikshank
Vic Hunter
Vic Hunter
饰：Metro Di
本·约翰逊
Ben Johnson
饰：Hollis
詹姆斯·厄尔·琼斯
James Earl Jones
饰：Malcolm X
约翰·马利
John Marley
饰：Dr. Pacheco
Chip McAllister
饰：Young Muhammad Ali
Jack McDermott
饰：Reporter
迪娜·梅瑞尔
Dina Merrill
饰：Velvet Green
罗杰·E·莫斯利
Roger E. Mosley
饰：Sonny Liston
Malachi Throne
饰：Payton Jory
Mira Waters
Mira Waters
饰：Ruby Sanderson
Theodore R. Wilson
Theodore R. Wilson
饰：Gardener
保罗·温菲尔德
Paul Winfield
饰：Lawyer
罗伊·费尔斯通
Roy Firestone
饰：TV Reporter (uncredited)
Levi Forte
饰：Gym boxer (uncredited)
Bob Gordon
饰：Reporter (uncredited)
阿奇·穆尔
Archie Moore
饰：Himself (uncredited)
Tracy 'Chubby' Steele
Tracy 'Chubby' Steele
饰：Boxer hitting heavy-bag in 5th Street Gym (uncredited)
Teddy Wilson
饰：John The Gardener
乔治·舒瓦洛
George Chuvalo
饰：Self,(archive footage)
Buster Mathis
饰：Self,(archive footage)
Yank Durham
Yank Durham
饰：Self,(archive footage)
Arthur Mercante
饰：Self,(archive footage)
肯·诺顿
Ken Norton
饰：Self,(archive footage)
Floyd Patterson
饰：Self,(archive footage)
Jerry Quarry
Jerry Quarry
饰：Self,(archive footage)
Barney Felix
乔治·福尔曼
George Foreman
Ven Medina
饰：Ronnie,(as Ben Medina)
Ray Mann
饰：Young Man