Bernie Casey
— Joe Louis
Stephen Macht
— Max Schmeling
Allen Garfield
— Damon Runyon
Norman Alden
— Max Machon
Joseph Campanella
— Paul Gallico
Britt Ekland
— Amy Ondra Schmeling
Julius Harris
— Chappie Jackson
Mordecai Lawner
— Joe Jacobs
Denise Nicholas
— Marva Trotter Louis
Beah Richards
— Lilly Brooks
Percy Rodriguez
— John Roxborough
Mel Stewart
— Julian Black
Barry Dennen
— Adolf Hitler
Johnny Haymer
— Nazi Official
Al Lewis
— Mike Jacobs
Rod McCary
— Rodney
Joshua Shelley
— Max
Dan Avey
— Blow-by-Blow Announcer
Jack Bernardi
— Mr. Weisman
Shaka Cumbuka
— Honey Bear
Sarina C. Grant
— Vunies
Tom Kelly
— First Newsman
Jimmy Lennon Sr.
— Ring Announcer
Allan Malamud
— Second Newsman
David Moody
— Wellwisher
Joni Palmer
— Emmarell
Stephen Roberts
— Franklin D. Roosevelt
Clement von Franckenstein
— German Commentator
Wonderful Smith
— Minister
George Latka
— Referee Donovan