Bernie Casey

as Joe Louis

Stephen Macht

as Max Schmeling

Allen Garfield

as Damon Runyon

Norman Alden

as Max Machon

Joseph Campanella

as Paul Gallico

Britt Ekland

as Amy Ondra Schmeling

Julius Harris

as Chappie Jackson

Mordecai Lawner

as Joe Jacobs

Denise Nicholas

as Marva Trotter Louis

Beah Richards

as Lilly Brooks

Percy Rodriguez

as John Roxborough

Mel Stewart

as Julian Black

Barry Dennen

as Adolf Hitler

Johnny Haymer

as Nazi Official

Al Lewis

as Mike Jacobs

Rod McCary

as Rodney

Joshua Shelley

as Max

Dan Avey

as Blow-by-Blow Announcer

Jack Bernardi

as Mr. Weisman

Shaka Cumbuka

as Honey Bear

Sarina C. Grant

as Vunies

Tom Kelly

as First Newsman

Jimmy Lennon Sr.

as Ring Announcer

Allan Malamud

as Second Newsman

David Moody

as Wellwisher

Joni Palmer

as Emmarell

Stephen Roberts

as Franklin D. Roosevelt

Clement von Franckenstein

as German Commentator

Wonderful Smith

as Minister

George Latka

as Referee Donovan

Pat O'Hara

as Tom O'Rourke

Clay Hodges

Warren Munson

Frank Slaten

as Nazi #1

Paul Schumacher

as Reporter (uncredited)