Mike Tyson

Briggs

Sara Malakul Lane

Liu

Hafþór Júlíus Björnsson

Mongkut

Sam Medina

Crawford

Steven Swadling

Joseph King

Miles Strommen

Rupert

Jessica Jann

Gamon

Maxime Savaria

Somsak

Wanderlei Silva

Chud

Frankie Edgar

Himself

Renzo Gracie

Himself

Renato Sobral

Himself

Sunan Sutthipho

Warden

Wilaiwan Saetung

Female Valet #1

Nuttanun Chutsirinitchakun

Female Valet #2

Kamel Krifa

O'Keefe

Roy Nelson

Himself

James P. Bennett

Nunchaku Man

Airr Phanthip

Whipping Guard

Fabrício Werdum

Brian Shaw

Ronaldinho

Ronaldo

พงศนารถ วินศิริ

Kunchai

Nicolas Van Varenberg

Travis

Maurício Rua

Himself

Felipe Werdum

Referee

Napatchakorn Intharanun

Guard with Rifle

Napatchakorn Intharanun

Guard / Prisoner

Rico Verhoeven

Moss

Aaron Rorattann

Guard / Prisoner

Ted Ung

Guard / Prisoner

Jimilee Allen

Kurt Sloane Entourage

Brian Blu

Convict

Darren Shahlavi

Eric Sloane (archive footage) (uncredited)

Kevin Lee

Hafþór ( Action Double )