Director/a
Clare Lewins
DIRECTOR/A
Reparto (por orden de créditos)
Muhammad Ali
Self(archiveFootage)
Gene Kilroy
Self
Rahman Ali
Odessa Clay
Cassius Clay Sr.
Joe Martin
Garry Jawish
Angelo Dundee
Henry Cooper
May May
Khalilah 'Belinda' Ali
Ken Jones
Sonny Liston
Jim Brown
Ed Herlihy
Newsreel narrator(archiveFootage)(voice)
Bill Russell
Kareem Abdul-Jabbar
Malcolm x
George Lois
Carl Fischer
Tom Jones
Muhammad Ali Jnr
David Frost
Joe Frazier
Dick Sadler
George Foreman
Verónica Porche Ali
Russ Routledge
Self - Muhammad Ali fan
Laila Ali
Hana Ali
Marvis Frazier
Trevor Berbick
Mike Tyson
Arsenio Hall
Sugar Ray Leonard
Norman Towns
Young Ali
Howard Cosell
Don King