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

Pat O'Hara

Tom O'Rourke

Clay Hodges

Warren Munson

Frank Slaten

Nazi #1

Paul Schumacher

Reporter (uncredited)