Will Stronghold

Michael Angarano

Acting

Gwen Grayson / Royal Pain

Mary Elizabeth Winstead

Acting

Steve Stronghold / The Commander

Kurt Russell

Acting

Josie Stronghold / Jetstream

Kelly Preston

Acting

Layla Williams

Danielle Panabaker

Acting

Coach Boomer

Bruce Campbell

Acting

Principal Powers

Lynda Carter

Acting

Ron Wilson, Bus Driver

Kevin Heffernan

Acting

Ethan

Dee Jay Daniels

Acting

Magenta

Kelly Vitz

Acting

Little Larry

Loren Berman

Acting

Zachary "Zach" Braun / Zack Attack

Nicholas Braun

Acting

Warren Peace

Steven Strait

Acting

Penny

Malika

Acting

Penny

Khadijah Haqq McCray

Acting

Lash

Jake Sandvig

Acting

Speed

Will Harris

Acting

Carbon Copy Kid

Dustin Ingram

Acting

News Anchor

Christopher Wynne

Acting

Nurse Spex

Cloris Leachman

Acting

Mr. Grayson / Stitches

Jim Rash

Acting

Mr. Boy

Dave Foley

Acting

Mr. Medulla

Kevin McDonald

Acting

Twin

Amy Brown

Acting

Evil Twin

Kimmy Brown

Acting

Cook

Lucille Soong

Acting

Young Commander

Zachry Rogers

Acting

Mr. Timmerman

Tom Kenny

Acting

Mrs. Timmerman

Jill Talley

Acting

Royal Pain (voice)

Patrick Warburton

Acting

Student Sidekick (uncredited)

Vakisha Coleman

Acting

Penny's Date (uncredited)

Sean Gordon

Sound

Laser-Vision Boy (uncredited)

Hans Hernke

Acting

Funky Prom Boy (uncredited)

Jason Maxim

Acting