Bernie Casey
Role: Joe Louis
Stephen Macht
Role: Max Schmeling
Allen Garfield
Role: Damon Runyon
Norman Alden
Role: Max Machon
Joseph Campanella
Role: Paul Gallico
Britt Ekland
Role: Amy Ondra Schmeling
Julius Harris
Role: Chappie Jackson
Mordecai Lawner
Role: Joe Jacobs
Denise Nicholas
Role: Marva Trotter Louis
Beah Richards
Role: Lilly Brooks
Percy Rodriguez
Role: John Roxborough
Mel Stewart
Role: Julian Black
Barry Dennen
Role: Adolf Hitler
Johnny Haymer
Role: Nazi Official
Al Lewis
Role: Mike Jacobs
Dan Avey
Role: Blow-by-Blow Announcer
Jack Bernardi
Role: Mr. Weisman
Shaka Cumbuka
Role: Honey Bear
Sarina C. Grant
Role: Vunies
Tom Kelly
Role: First Newsman
Jimmy Lennon Sr.
Role: Ring Announcer
Allan Malamud
Role: Second Newsman
David Moody
Role: Wellwisher
Joni Palmer
Role: Emmarell
Stephen Roberts
Role: Franklin D. Roosevelt
Clement von Franckenstein
Role: German Commentator
Wonderful Smith
Role: Minister
George Latka
Role: Referee Donovan
Pat O'Hara
Role: Tom O'Rourke
Frank Slaten
Role: Nazi #1
Paul Schumacher
Role: Reporter (uncredited)