Stars (in credits order)
Johnny Addie
Self - Ring Annoucner
Muhammad Ali
Self
Jimmy Braddock
Self - Guest
Drew Bundini Brown
George Chuvalo
Cassius Clay Sr.
Curtis Cokes
Angelo Dundee
Self - Manager
Don Dunphy
Self - Ringside Commentator
Win Elliot
Jimmy Ellis
Zora Folley
Rocky Graziano
Emile Griffith
Johnny Lobianco
Self - Referee
Joe Louis
Herbert Muhammad
Carlos Ortiz
Willie Pep
Sugar Ray Robinson
Luis Rodriguez
Roger Rouse
Sandy Saddler
Petey Scalzo
Bill Swift
Ernie Terrell
José Torres
Ike Williams