Underdog Kids

Phillip Rhee

Jimmy 'The Lightning Bolt'

Mirelly Taylor

Valerie Cruz

Max Gail

Charlie Walker

Adam Irigoyen

Wyatt

Ryan Potter

Eric

Ted McGinley

Mr. Hershfeld

Lauren Bowles

Mrs. Jones

Ellia English

Big Mama

Cade Sutton

Raymond

Nicolas Bechtel

Sean

Rayna Vallandingham

Leticia

Lorenz Arnell

Rasheed

Aidan Considine

Alex

Sebastian Saraceno

Big Guy

Tom Arnold

Gene "Geno" Burman

Beau Bridges

Ron Butz

Seth Lee

Jake

Benny Urquidez

Judge

Richard Norton

Judge

Ron Yuan

Marc Zuko

Dallas Liu

Young Jimmy

Andrew Franklin

Ricky

Jaron Adams

Bathroom Bully (uncredited)

Don Wilson

Judge