High School

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