Dwayne Johnson as Mark Kerr

Emily Blunt as Dawn Staples

Ryan Bader as Mark Coleman

Bas Rutten as Bas Rutten

Lyndsey Gavin as Elizabeth Coleman

Zoe Kosovic as McKenzie Coleman

Oleksandr Usyk as Igor Vovchanchyn

Satoshi Ishii as Enson Inoue

James Moontasri as Akira Shoji

Yoko Hamamura as Kazuyuki Fujita

Paul Cheng as Masaaki Satake

Andre Tricoteux as Paul Varelans

Marcus Aurelio as Mestre Hulk

Roberto "Cyborg" Abreu as Fábio Gurgel

Jerin Valel as Sergio Batarelli

Raja Flores as Dr. Cortez

Egidiyus Klimas as Igor's Manager

Randi Lynne as Receptionist

Yasuhiro Nakatsuka as Pride Journalist #1 (1999)

Kenny Rice as Vale Tudo Announcer

Tak Sasaki as Pride Referee (1999)

Paul Wu as Pride Referee (2000)

Joshua Mazerolle as HGE Sparring Partner

Jason William Day as HGE Sparring Partner

Mark Kerr as Himself

Annette Alvarado as Grocery Store Cashier

James McSweeney as Varelans' Cornerman

Jonathan Corbblah as UFC 1997 Interviewer

Ilan Rosenberg as Coleman's Cornerman

Nick Toren as UFC 1977 Photojournalist

Jill Basey as Peggy

Bethany Brown as Nurse

Soichi Sato as Window Seat Passenger

Takaaki Nagata as Taxi Driver

Jugo Hashimoto as Vespa Driver

Haruo Tokashiki as Pride 1999 Official

Hiroko Taki as Small Shopkeeper

Hironori Kamoshita as Pride 1999 Journalist #2

Yasuko Mitsuura as Pride Director

Shinpei Otsuki as Pride Translator

Olga Dzyurak as Igor's Translator

Takeshi Kurokawa as Flight Attendant

Tomoka Kobayashi as Pride 1999 Employee

Chris Franco as Igor's Cornerman

Takao Osawa as Nobuyuki Sakakibara

Midori Takiya as Mr. Sakakibara's Translator

Naoshi Sasaki as Pride 1999 Pharmacist

Rina Shimomura as Pride 1999 Journalist #3

Royal Johnston as Gravitron Operator

Whitney Moore as Jaqueline

Adrianne Lovato as Waiter

Tomoya Naka as Pride 2000 Photographer

Yuki Kedoin as Pride 2000 Photographer

Stephen Quadros as Stephen Quadros

Tomoyasu Hotei as Tomoyasu Hotei

Nala Sinephro as Star Spangled Banner Performer

Ryan Ventura as Pride 2000 Announcer

Paul Wu as Pride 2000 Referee

Gary Copeland as Kerr/Inoue Referee

Jamie Fair as Phoenix Barber

Jordan Greer as Ohio State Wrestling Partner

Byron Capers as Phoenix Police Officer

Ei Yoshikawa as Pride 2000 Journalist

Roberto de Abreu Filho as Fabio Gurgel

Lance Gibson as UFC Contender

Yushin Okami as Alexander Otsuka

Marcus Vinicios as Ebenezer Fontes Braga

Adam Santos as Ricardo Morais

Christopher Ackerman as Demolition Derby Announcer

Shawn C. Orr as Demolition Derby Driver

Brett Randy Bourgeois as Demolition Derby Driver

Scott Meloshinsky as Demolition Derby Driver

Hugo Steele as Firefighter

Brennan Walstrom as Firefighter

Roberto Abreu as (uncredited)

Jason Broadwell as Grocery Store Patron (uncredited)

Ismail Elfallahi as Derby Fan (uncredited)

Charles Chi Soo Kim as Tokyo Dome Wrestling Fan (uncredited)

Paul Lazenby as Hans Nijman (uncredited)

Jasper Salon as Cutman (uncredited)

Nina Sugii as Japanese Hotel Guest/Fan (uncredited)

Naoki Tasaki as Journalist (uncredited)

Jason Tremblay as Arizona Police Officer (uncredited)

Taylor Trujillo as Burger Joint Patron (uncredited)

Lawrence Yang as MMA Trainer of Masaaki Satake/Cameraman (uncredited)