Elenco (na ordem dos créditos)
Gil Clancy
Self - Ringside Commentator
Tim Ryan
Tom Harmon
Muhammad Ali
Self - Boxer
Red Smith
Self - Journalist
Angelo Dundee
Ferdie Pacheco
Self - Cornerman
Dave Anderson
Rudy Battle
Self - Referee
Sugar Ray Leonard
Ken Squier
Self - Announcer
Ned Jarrett
Self - Race Analyst
Kenny Wallace
Mike Joy
Self - Pit Reporter
Dick Berggren
Rocky Marciano
Self - Audience Member
Joe Louis
George Chuvalo
Floyd Patterson
Jersey Joe Walcott
Jimmy Braddock
Zach Clayton
Jack Whitaker
Self - Studio Commentator
Gene Tunney
Don Dunphy
Milton Gross
Nat Fleischer
Self - Boxing Historian
José Mantequilla Nápoles
Billy Backus
George Foreman
Joe Frazier
Rahman Ali
Jimmy Breslin
Drew Bundini Brown
Gene Kilroy
Bert Randolph Sugar
Willie Pastrano
Odessa Clay
Bill Brennan
Self - WBA President
Cassius Clay Sr.
Herbert Muhammad
Self - Manager
Howard L. Bingham
Ramon G. Velázquez
Self - WBC. President
Mel Durslag
Joe Brown
Gil Sanchez
Self - Trainer
Mac Foster
Herman Dutreix
JE Crowder
Takeo Ugo
Self - Judge
Mark Kram
Terry Daniels
Eddie Futch
Champ Clark
Self - Ring Annoucner
Pat DiFuria
Al Wester
Arthur Dell
Hank Kaplan
Maxie Docusen
Eddie Brown
Bob Sheridan
Hiroyuki Tezaki
Pete Herman
Yank Durham
Hugo Corro
Rodrigo Valdez
Marlon Starling
Victor Abraham
Charles McHenry
Jim Ingram
Self - Ring Announcer
Lou Bogash Jr.
Ken Offet
Frank Shain
Arlen Bynum
Harold Lederman
Donald Curry
Milton McCrory
Max Harnish
Phil Ladouceur
Ed Derian
Donovan Ruddock
Self
Kimmuel Odum
Terry Labonte
Self - Driver
Ricky Craven
Johnny Benson
Jeff Purvis
Kelly Moore
Jeff Spraker
Butch Leitzinger
Tom Bolles
Hermie Sadler
Jeff Green
Tommy Houston
Bobby Dotter
Tim Fedewa
Jeremy Mayfield
Jimmy Spencer
Greg Clark
Chad Little
Phil Parsons
David Green
Mike McLaughlin
Kevin Lepage
Tracy Leslie
Victor Sifton
Bobby Dragon
Ashton Lewis
Steve Grissom
Jason Keller
Doug Heveron
Rodney Combs
Larry Pearson
Martin Truex
Phillip Groggins
Rick Bye
Patty Moise
Dirk Stephens
Dale Shaw
Jim Bown
Randy MacDonald
Jeff Fuller
Curtis Markham
Elton Sawyer
Brent Musburger
Host
Greg Gumbel
Chris Schenkel
John Tesh
Commentator
Bud Palmer
Host (1960-1961)