Kevin Costner as Narrator (voice)

Bas Rutten as Himself

Rashad Evans as Himself

Jon Jones as Himself

Tito Ortiz as Himself

Chuck Liddell as Himself

Georges St-Pierre as Himself

Kenny Florian as Himself

Bruce Buffer as Himself

Mike Guymon as Himself

Ronda Rousey as Herself

John McCarthy as Himself

Urijah Faber as Himself

Ken Kilpatrick as Himself

Ariel Helwani as Self

Muhammed Lawal as Self