The Greatest

Muhammad Ali

Cassius Clay / Muhammad Ali

Ernest Borgnine

Angelo Dundee

John Marley

Dr. Ferdie Pacheco

Lloyd Haynes

Herbert Muhammad

Lucille Benson

Mrs. Fairlie

Sally Bondi

Bess

Malachi Throne

Payton Jory

Teddy Wilson

Joe The Gardener

Annazette Chase

Belinda Ali

Mira Waters

Ruby Sanderson

Chip McAllister

Cassius Clay aged 18

Drew Bundini Brown

Himself

Robert Duvall

Bill McDonald

David Huddleston

Cruikshank

Ben Johnson

Hollis

James Earl Jones

Malcolm X

Dina Merrill

Velvet Green

Roger E. Mosley

Sonny Liston

Paul Winfield

Draft Lawyer

Richard Gullage

Commission Doctor

Arthur Adams

Cassius Clay Sr.

Dorothy Meyer

Odessa Clay

Rahman Ali

Rahman Ali

Howard Bingham

Howard Bingham

Richard Venture

Colonel

Stack Pierce

Rahaman

W. Youngblood Muhammad

W. Youngblood Muhammad

Ven Medina

Ronnie

Paul Mantee

Carrara

Skip Homeier

Major

Lloyd Wells

Lloyd Wells

George Garro

Mr.Curtis

David Clennon

Captain

Ernie Wheelwright

Bossman Jones

Pat Patterson

Pat Patterson

George Cooper

Lawyer

James Gammon

Mr. Harry

Gene Kilroy

Gene Kilroy

Toni Crabtree

Hooker

Sally Gries

Sponsor's Wife

Elizabeth Marshall

Sponsor's Wife

Don Dunphy

Commentator

Fernand A. Larrieu Jr.

Grocer

Nai Bonet

Suzie Gomez

Harold Conrad

Harold Conrad

Alberto Martín

Doctor

Walter Olkewicz

Reporter

Roy Firestone

TV Reporter (uncredited)