Michael B. Jordan
Adonis Johnson

Sylvester Stallone
Rocky Balboa

Tessa Thompson
Bianca

Phylicia Rashād
Mary Anne Creed

Andre Ward
Danny 'Stuntman' Wheeler

Tony Bellew
'Pretty' Ricky Conlan

Ritchie Coster
Pete Sporino

Jacob 'Stitch' Duran
Stitch

Graham McTavish
Tommy Holiday

Malik Bazille
Amir

Gabriel Rosado
Leo 'The Lion' Sporino

Wood Harris
Tony 'Little Duke' Burton

Buddy Osborn
Conlan's Cut Man

Rupal Pujara
Dr. Kathari

Brian Anthony Wilson
James

Johanna Tolentino
Lady Cop

Tony Brice
Tone Trump

Kash Goins
Larry

Clare O'Malley
Reporter

Kevin King Templeton
Press Conference Moderator

Roy James Wilson
City Jail Cop

Mauricio Ovalle
Flores' Trainer

Mark Rhino Smith
Conlan's Buddy

Hans Marrero
Flores

Anthony Martins
Welterweight #2

Frank Pesce
Mickey's Gym Doorman

Richard Lyntton
Ringside Doctor

Liev Schreiber
HBO 24/7 Narrator (voice)

Max Kellerman
Max Kellerman

Jim Lampley
Jim Lampley

Michael Buffer
Michael Buffer

Michael Wilbon
Michael Wilbon

Tony Kornheiser
Anthony Kornheiser

Alex Henderson
Young Adonis

Nelson Bonilla
Staff Member #2

Troy Faruk
Staff Member #3

Angela Davis
Staff Member #4

Claire Bronson
Social Worker

Ludwig Göransson
Bianca's Band

Moses Sumney
Bianca's Band

Sli Lewis
Dirt Bike Rider

Brionna Maria Lynch
Dirt Bike Rider

Jalil Jay Lynch
Dirt Bike Rider

Zedric Harris
Security Guard

Christopher Jon Gombos
Security Guard

Stephen Chang
Asian Reporter (uncredited)

Charles W Harris III
Boxer (uncredited)

Rocky Ciarrocchi
Fan in Crowd (uncredited)

Maria Shamkalian
Ricky's Friend (uncredited)

Stefania Damiano
Ring Girl (uncredited)

Chandra Anderson
Ring Girl (uncredited)

Wain Jenkins
Spectator (uncredited)