A high school slacker who's rejected by every school he applies to opts to create his own institution of higher learning, the South Harmon Institute of Technology, on a rundown piece of property near his hometown.
Bartleby Gaines
Justin Long
Sherman Schrader
Jonah Hill
Monica Moreland
Blake Lively
Glen
Adam Herschman
Hands
Columbus Short
Rory
Maria Thayer
Uncle Ben
Lewis Black
Mr. Schrader
Jim O'Heir
Jack Gaines
Mark Derwin
Diane Gaines
Ann Cusack
Lizzie Gaines
Hannah Marks
Abernathy
Robin Lord Taylor
Kiki
Diora Baird
Kiki's Best Friend
Lisa Gleave
Maurice / The Ringers
Joe Hursley
Freaky Student
Jeremy Howard
Dean Van Horne
Anthony Heald
Mike McNaughton
Ross Patterson
Mike Welsh
Sam Horrigan
Hoyt Ambrose
Travis Van Winkle
Gwynn
Kaitlin Doubleday
Dwayne
Kellan Lutz
Wayne
Brendan Miller
Confused Kid
Chantelle Tibbs
S. H. Student in Hallway
Skyler Stone
Mrs. Schrader
Darcy Shean
Economics Teacher
Brian Powell
Drop-off Dad
Scott Adsit
Drop-off Mom
Lindy Loundagin
Desk Clerk
Steve Little
Frat Guy
Parker Quinn
Mike Chambers
Artie Baxter
Frat guy (uncredited)
Greg Sestero
Girl By Pool (uncredited)
Sara Jean Underwood
Kiki's Best Friend
Alejandra Gutierrez
S. H. Student in Hallway
Yorke Fryer
S. H. Student in Hallway
James Taku Leung
Family Friend
Jay Harik
Shoe Store Boy
Mathew Vigil
Shoe Store Mother
Debbon Ayer
Shoe Store Manager
Carla Jimenez
Dr. J. Alexander
Ned Schmidtke
Vice Principal Matthews
Tim Bagley
Boy Going to Princeton
Ray Santiago
Academic Counselor
Margaret Travolta
Male Graduate (scenes deleted)
Ethan Hova
Go Go Dancer
Criscilla Anderson
Go Go Dancer
Larke Hasstedt
Glen's Party Girl
Meredith Giangrande
Glen's Party Girl
Kate French
S. H. Testimonial Student
Zoe Di Stefano
S. H. Testimonial Student
David Carmon
S. H. Testimonial Student
Armen Weitzman
S. H. Testimonial Student
Christopher Khai
Fake ID Kid
Jamie Leffler
Fake ID Kid
Wendy Rodriguez
Fake ID Kid
Richard Alan Brown
Fake ID Kid
Mylika Davis
Fake ID Kid
Laurie Meghan Phelps
Fake ID Kid
Portis Hershey
The Ringers
Joseph Stiteler
Frat Guy
Asher Gold