Psycho Ed
Adrien Brody
Henry Burke
Matt Bush
Malcolm
George Back
Sharky Ovante
Alicia Sixtos
Hippie Dude
Andrew Wilson
Dana
Camille Mana
Tameka
Erica Vittina Phillips
Edwin Hunter
Arcadiy Golubovich
Charlyne
Julia Ling
Chad
Cody Longo
Mrs. Gordon
Mary Birdsong
Computer Skills Teacher
Yeardley Smith
Travis Breaux
Sean Marquette
Mr. Thompson
Curtis Armstrong
Spelling Bee Rival
Alex Biats
Male News Desk Reporter
John Beard
Female News Desk Reporter
Barret Swatek
Vato
Rhys Coiro
Drug PSA Stoned Teenager
Wyatt Russell
Lead Terrorist
Mike Eshaq
Cheerleader who collides with Henry
Heather Elizabeth Regan
Vivian
Terri Lyn Rodriguez
Jeffrey
Robert Bailey Jr.
Brandon Ellis
Colin Hanks
Hippie Chick
Kelli Rasmus
Older Female Donor
Shirley Benyas
African American Donor
Wallace Bridges
Donor #1
Carl Harry Carlson
Donor #2
Randy Godwin
Donor #3
Mike Evans
Head Nurse
Linda Boston
Emily Tooms
Nadine Crocker
Chess Opponent
Clarence Smith
Stunned Lawn Bowler
Ron Ayers
Dr. Leslie Gordon
Michael Chiklis
Band Teacher
Karl Murphy
Angry Parent #1
Rachel Quaintance
Angry Parent #2
Peter Tocco
Announcer
Mike Woods
Female Reporter
Kerry Birmingham
Mr. Cavanaugh
Kevin Yon
Cook #1
Sammy A. Publes
Cook #2
Rene Santana
Cop #1
Billye Thompson
Rubin
J. J. Soria
Sebastian Saleem
Adhir Kalyan
School Security Guard
David Herbst
Drug PSA (voice)
John O'Hurley
Grandpa Frodo - Ed's Frog (voice)
John Stalberg Jr.
Henry's Mom (voice)
Heather Kleisner
Stoned High School Student (uncredited)
D.B. Dickerson
High School Student (uncredited)
Sabrina Dungan
School Admin (uncredited)
Penny Gibbs
Dwayne Reynolds (uncredited)
Adam Lorenz
Concerned Parent (uncredited)
Bill Lumbert
Teacher (uncredited)
Misty Mills
Paranoid
Mykelti Williamson
Jerry Reid
Academy Student (uncredited)
Steven Sutherland
Terrorist (uncredited)
Joe Tinpan
Calculus Teacher (uncredited)
Michael Vartan
Amanda Bright
Librarian
Kathi J. Moore
Big Dave
Luis Chávez
Little Dave
Max Van Ville
Martin Gordon
Brett Kelly
Director of Photography
Mitchell Amundsen
Stunts
Darrin Prescott
Music
Taylor Stewart
Andrew Grush
Co-Executive Producer
Ryan Lewis
Screenplay
Stephen Susco
Executive Producer
Erik Linthorst
Story
Associate Producer
Michael Shahoud
Producer
Raymond J. Markovich
Armen Mahdessian
Line Producer
B.J. Rack
Olga Mirimskaya
Editor
Gabriel Wrye
Warren Zide
Director