T.J. Detweiler

Andy Lawrence

T-Jay

Stamatis Tsakonas

Dr. Benedict

James Woods

Vince

George Mataragas

Vince Lasalle

Rickey D'Shon Collins

Principal Peter Prickly

Dabney Coleman

Gretchen

Evelina Nikoliza

Ashley Spinelli

Pamela Segall

Gretchen Grundler

Ashley Johnson

Mikey Blumberg

Jason Davis

Mikey

Giannis Galiatsos

Spinelli

Irina Hatzinikolaou

Mikey Blumberg (singing)

Robert Goulet

Gustavus 'Gus' P. Griswald

Courtland Mead

Gus

Nikolas Tragakis

Becky Detweiler

Melissa Joan Hart

Ms. Finster/Mrs. Detweiler

April Winchell

Fenwick

Peter MacNicol

Digger Dave / Randall (voice)

Ryan O'Donohue

Miss Alordayne Grotkey

Allyce Beasley

Coach Kluge

Paul Willson

Dr. Rosenthal (voice)

Tony Jay

Guard #2

Diedrich Bader

Guard No.1

Dan Castellaneta

Tech #1

Gregg Berger

Lunchlady Harriet (voice)

Andrea Martin

Lunchlady Irma / Ms. Lemon / Opera Director / Dr. Steinheimer (voice)

Tress MacNeille

Digger Sam

Klee Bragger

Dr. Lazenby/Tech No. 2

Ron Glass

Cop #1 (voice)

Nicholas Turturro

Bald Guy

Clancy Brown

Cop #2 (voice)

Kevin Michael Richardson

King Bob

Toran Caudell

Ashley Q

Rachel Crane

Counselor (voice)

Kath Soucie

Cap'n Sticky

E.G. Daily

Mort Chalk (voice)

Charles Kimbrough

Colonel O'Malley

Lee Ermey

Superintendent (voice)

Robert Stack

Coach (voice)

Ken Swofford

Ashley B / Swinger Girl / Upsidedown Girl (voice)

Francesca Smith

Ashley B / Swinger Girl / Upsidedown Girl (voice)

Francesca Marie Smith

Mr. Yamashiro (voice)

Clyde Kusatsu

Captain Brad Lawson (voice)

Erik von Detten

Jordan (voice)

Patrick Renna

Ashley A

Anndi McAfee

Technician

Mark Robert Myers

Golfer No.1

Jack Riley

Golfer No.2/Scientist No.2

Phil Proctor

Soldier Kid/Wrestler Kid

Justin Shenkarow

Hustler Kid

Michael Shulman

Cap'n Sticky (voice)

E. G. Daily

Ashley B/Swinger Girl/Upside-down Girl

Fancesca Marie Smith

Captain Brad/Lawson

Erik Von Dettin

Mrs. Flo Spinelli

Katey Sagal