由《哥伦拜恩保龄球》、《华氏9·11》和《铁世代》的制片人打造，《伤痛生意》通过当今顶级明星的视角探讨综合格斗的崛起。
Kevin Costner
Narrator (voice)
Bas Rutten
Himself
Rashad Evans
Jon Jones
Tito Ortiz
Chuck Liddell
Georges St-Pierre
Kenny Florian
Bruce Buffer
Mike Guymon
Ronda Rousey
Herself
John McCarthy
Urijah Faber
Ken Kilpatrick
