Khris Davis as George Foreman

Forest Whitaker as Doc Broadus

Sullivan Jones as Muhammad Ali

Deion Smith as Roy Foreman

Matthew Glave as Howard Cosell

John Magaro as Desmond

Sonja Sohn as Nancy Foreman

Sam Trammell as Rev. Virdell Stokes

Lawrence Gilliard Jr. as Archie Moore

Jasmine Mathews as Mary Joan

Shein Mompremier as Paula

Robert Cicchini as Angelo Dundee

Erica Tazel as Mary Foreman

Dwayne L. Barnes as Dick Sadler

K. Steele as Gloria Foreman

Austin David Jones as Teenage George Jr.

Jordan Yarborough as Teenage Mary Foreman

Philip Fornah as Sonny Foreman

Al Sapienza as Gil Clancy

Brian Ibsen as Jim Lampley

Kei as Young George

Judd Lormand as Dr. West

Don Tieri as Larry Merchant

Robert Larriviere as Bank Manager

Ayden Gavin as Young Roy Foreman

Azaria Carter as Teenage Gloria Foreman

Tom Virtue as Johnny Carson

Anthony Marble as Ned Miller

Jordan Bates as Mitchell

Dinetia Dean as Party Beauty

Russell Mora as Mercante (Frazier Ref)

Deneen Tyler as Mrs. Burke

Madison Dirks as Neighbor

April Dupré as News Reporter

Nile Memmezzwattay as Maurice

T.C. Matherne as Director

Julia Lashae as Mrs. Jennings

Ray King Sr. as Crowd Guy Booker

Slim Danger Barkowska as Old Fat Bald Man

Martin Bats Bradford as Marcus Tucker

Greg Wattkis as Drunk Man

Samantha Beaulieu as Cousin Rita

Eric Hanson as George Colton

Kenneth Martin Jr. as Younger George Jr.

Selase Botchway as Reporter - Kingston

Makario Glenn as Jalen Burke

Tom Gregory as Sports Anchor

Michael Papajohn as Officer Dell

Matthew Rimmer as Job Corps Worker Simms

Tre Styles as Street Guy Lamont

Billy Slaughter as Kurt Gaines

Chukwuma Onwuchekwa as Dressing Room Soldier

Lara Grice as Roberta

Keith Hughes as Moorer Referee

Michael Harrity as Zouski's Trainer

Chance C Morris as Sneaker Thief

Bill Martin Williams as Ring Doctor

Desiree Edwards as Singing Congregant

Jimbo Stevenson as Zouski Referee

Jonathan Mercedes as Foreman Cornerman

Jason Elwood Hanna as Foreman Cornerman

John Palmeri as Johnson Cornerman

Michael Thomas as Johnson Cornerman

Raion Hill as Cepulis Referee

José José Reinaldo Flora as Ali Referee

Cedric Boswell as Sonny Liston

Charles Brewer Jr. as Michael Moorer

DJ Walton as Miguel Angel Paez

David Jite as Jimmy Young

Carlos Takam as Joe Frazier

Barry Hanley as Steve Zouski

Zephaniah Terry as Royce

Philip Craddock as Cepulis

Matt Frost as Don Waldheim

Bob Pelletier as Lead Cop

Michael Ricca as Bob Hazelton

David Proctor Jr. as Alonzo Johnson

Joshua Wade as Sparring Partner

Adnan Virk as Sports Announcer

Brian Kenny as Sports Announcer

Robert Flores as Sports Announcer

Al Bernstein as Sports Announcer

Tommy Wright as Announcer

Kasie LaFleur as Attendee (uncredited)