Kevin James

Character: Scott Voss

Salma Hayek Pinault

Character: Bella Flores

Henry Winkler

Character: Marty Streb

Greg Germann

Character: Duke Betcher

Joe Rogan

Character: Joe Rogan

Gary Valentine

Character: Eric Voss

Jake Zyrus

Character: Malia De La Cruz

Bas Rutten

Character: Niko

Nikki Tyler-Flynn

Character: Mollie Streb

Reggie Lee

Character: Mr. De La Cruz

Jason Miller

Character: 'Lucky' Patrick Murphy

Mark Muñoz

Character: Romero

Melissa Peterman

Character: Lauren Voss

Shelly Desai

Character: Miguel

Bruce Buffer

Character: Bruce Buffer

Krzysztof Soszynski

Character: Ken 'The Executioner' Dietrich

Satoshi Ishii

Character: Fairgrounds Fighter

Mark DellaGrotte

Character: Mark DellaGrotte

Herb Dean

Character: Herb Dean

Arianny Celeste

Character: Penelope 'Pinche Punisher' Lopez

Mookie Barker

Character: Vice Principal Elkins

Mike Goldberg

Character: Mike Goldberg

Wanderlei Silva

Character: Wanderlei Silva

Chael Sonnen

Character: Arguing Fighter

Jacob 'Stitch' Duran

Character: Jacob 'Stitch' Duran

Melchor Menor

Character: Sityodtong Gym Fighter

Lenny Clarke

Character: Loud Dietrich Fan

Jason Sandler

Character: High School Student

J. Michael Trautmann

Character: Derrick

Ivan Padilla

Character: Martinez

Nicholas R. Grava

Character: Jacob

Frank Coraci

Character: Disoriented Gym Patron

Olivia Jordan

Character: Ring Girl

Rich Manley

Character: Male Receptionist (uncredited)

Jackie Flynn

Character: Joe Duffy

Blaine Stevens

Character: Mary Shannon Voss

Steven Ritchie

Character: Brian

Earnestine Phillips

Character: Muba

Michael Burton

Character: Ref at Fairgrounds

Nicholas Turturro

Character: Referee

Alex Ziwak

Character: MMA Corner Man (uncredited)

Deborah Rosencrans

Character: Citizenship Student