- Tom Wade Huntington - Tony Dillon
- Samantha Esteban - Maria Lopez
- Richard Lee Jackson - Ryan Parker
- Ben Gould - Nicky Farina
- Robert Sutherland Telfer - Scott Erikson
- Anthony Harrell - Eric Little
- Isaac Lidsky - Barton 'Weasel' Wyzell
- Salim Grant - R.J. Collins
- Mark Blankfield - James
- Ryan Hurst - Crunch Grabowski
- Victor Brandt - J. Walter McMillan
- Nick Spano - Peter
- Miguel Pérez - Captain Lopez
- James Marsden - Chad Westerfield
- Pamela Brull - Gwen Barrett
- Richard Lawson - Judge Thurston Jones
- Michael Milhoan - Coach Miller
- Howard George - Coach
- R.J. Williams - Eric
- David Kopp - Guy
- Brittney Powell - Karen Jensen
- Brian Reddy - Mr. Doyle
- Jordan Ladd - Debbie
- Tara Reid - Sandy
- Bumper Robinson - Doug Parker
- Ebonie Smith - Michele
- Joel Gretsch - Mr. Hartley
- Joe Michael Burke - Bo
- Bart Johnson - Clint
- Jamie Kaler - Kyle
- Mary Jo Catlett - Mrs. Bluntley
- Lark Voorhies - Lisa Turtle
- Derek Stephen Prince - Tuba
- Albie Selznick - Gavin Malone
- Brody Hutzler - Craig
- Heidi Lucas - Nicole Miller
- Lea DeLaria - Miss Hearst
- Jazsmin Lewis - Carla Peterson
- Peter Dennis - Mr. Hathaway
- Corbin Allred - Franklin
- Susanne Blakeslee - Woman
- Kristen Miller - Robin
- Adrienne Wilkinson - Sonya
- Brook Kerr - Shauna
- Shannon Cochran - Ms. Richards
- Michael Dempsey - Coach Wagner
- Mack Dryden - Roger
- Louis Vanaria - Bongo
- Nicole Pulliam - Jennifer
- Julian Christopher - Teddy Edwards
- Frank Bonner - Mr. Harrington
- Danny Slavin - Rob
- Lilyan Chauvin - Old Woman
- James Lesure - Lieutenant Griffin
- Persia White - Heather
- Phillip Glasser - Stanley
- Milo Ventimiglia - Greg
- D. Paul Thomas - Dr. Donaldson
- Amy Grabow - Carolyn
- Bobby Edner - Little Zack
- Hilary Angelo - Chloe
- Barry Livingston - Mr. Green
- Taraji P. Henson - Girl
- Jennifer Hale - Sue
- Ruta Lee - Mrs. Gore
- Kim Miyori - Ms. Wells
- Jerry Lacy - Jack Trenton
- Sam Jones - Jeff
- Christopher Gorham - Mark Carlson
- Merrin Dungey - Coach Williams
- Brenden Jefferson - Warren
- Diane Delano - Officer Barry
- John Aprea - Mr. De Luca
- Emma Caulfield Ford - Nurse Penny Brady
- Ken Thorley - Lou Jaworski
- John Livingston - Todd
- Arif S. Kinchen - Devin
- Danny Strong - Noogie
- Lewis Arquette - Uncle Lester
- Megyn Price - Samantha
- Mario López - A.C. Slater
- Dave Ruby - Heavy
- Rick Otto - Justin Wells
- Magda Harout - Dean Eagleton
- Natashia Williams - Valerie Butler
- Shannon Welles - Miss Grundy
- Ritch Brinkley - Grandpa Ernie Powers
- Phina Oruche - Ashley
- Louan Gideon - Mrs. Belding
- Janet Evans - Janet Evans
- Ken Weiler - Brian Blair
- Marisa Lauren - Violet
- Jeff Allin - Mr. Miller
- Jack Carter - Larry Madison
- Kareem Abdul-Jabbar - Kareem Abdul-Jabbar
- Greg Baker - Mr. Ranaldi
- Gloria LeRoy - Florence
- Marianne Muellerleile - Mrs. Steele
- Jackie Stevens - Claire
- Steve Monroe - Brick
- Louis Turenne - Mr. Snavely
- Lexie Bigham - Carl Butler
- Rachelle Carson - Mrs. Jeffries
- Mark-Paul Gosselaar - Zack Morris
- Rachel Winfree - Ethel
- Greta Sesheta - Mrs. Perkins
- Jasper Cole - Gymnast
- Michelle Morgan - Alysia
- Lew Horn - Mr. Moody
- Scott Gurney - Jeff
- Danil Torppe - Fred
- Richard Garrison - Lloyd
- Walt Stevens - Mr. Kelley
- Judy Kain - Mrs. Mahoney
- Judy Kain - Judy
- Diane Behrens - Martha
- Todd Kimsey - Grand Master Doug
- Larry Bagby - J.T.
- David Byrd - Mr. Hammersmith
- Christiana Barron - Jenny Turner
- Neo Edmund - Marvin
- Diane Sainte-Marie - Mrs. Warner
- Ryan Thomas Brown - Meat
- Katy Barnhill - Ashley Barrett
- Tom Williams - Baby (voice)
- Grant Gelt - Harv Dorkman
- Stephanie Dicker - Natalie Hunter
- Kevin Gardner - Milton
- Brandon Rane - Woodrow
- Don Perry - Mr. Maloney
- Christy Taylor - Susie
- Jhoanna Trias - Cheerleader
- Clare Salstrom - Alison Harrington
- Fort Atkinson - Mr. Jayson
- Linda Lawson - Mrs. Farrel
- Susan Ann Connor - Mrs. Hunter
- Steve Howard - Mr. Hunter
- Loren Blackwell - Thorndike
- Lee Duncan - Chair Umpire
- Adam Gifford - Kirk
- Brian Turk - Spike
- Loren Freeman - Mr. Lazaar
- Loren Freeman - Ramon-Ramon
- Marcia Ann Burrs - Mrs. Turner
- Jen Richey - Diane
- Raye Birk - Superintendent Stoneman
- Ron Ross - Mr. Petrie
- Eddie Allen - Mr. McKenzie
- Andrew Zeller - Jag
- Gabrielle Union - Jennifer
- Gabrielle Union - Hilary
- Michael Leopard - Coach
- Juliette Jeffers - Katrina
- Matt Kaminsky - Travis
- Michael Potter - Sheriff
- Don Handfield - Rod
- Ali Afshar - Grease
- Alex DeBoe - Chris
- David Brown - Chip
- Colin K. Gray - Ski Patrolman
- Nick Angotti - Mr. De Luca
- Peter Rocca - Vince
- Patrick Cronin - Woodbury
- Ellen Clark - Lucille
- Matthew Sutherland - Virgil
- Aileen Fitzpatrick - Sandy Bennett
- Ryan Thomas Johnson - Arthur
- Ronald G. Joseph - Hector Lopez
- Troy Medley - Trombone
- Melissa Taub - Bass Drum
- Drew Ebersole - Todd Green
- Jeff Payton - Steve
- Louis Plante - Professor Hodges
- Eddie Ebell - Brian
- Winifred Freedman - Mabel
- Adam Consolo - Boogie
- Christopher Caso - Flip
- Amy Gross - Berethra
- Jeanette Miller - Mrs. Frumkin
- Al Garrett - Jock
- Ron Melendez - Greg
- Jeff Mosley - Mr. Lindstrom
- Gregg Perrie - Mr. Frawley
- Donald Agnelli - Guest
- Lillian Adams - Lady
- Jerry Buteyn - Sailor
- Kristin Norton - Eunice
- Rod Biermann - Rolf
- Bryan Clark - Captain
- Danny Cistone - Yaffe
- Danny Cistone - Sheldon
- Shaun Cozzens - Cute Guy (uncredited)
- Shaun Cozzens - Mark
- Joel Jordan - Hammer
- Joel Jordan - Judge
- Bob Rudd - Rachel's Father
- Selma Stern - Miss Biddy
- Gunther Jenson - Coach Krumlauf
- Ron Robinson - Kid
- Dublin James Wahlberg - Edgar
- Rick Zieff - Mr. Dimmick
- Robert Forrest - Jean-Paul
- Lisa Passero - Rene
- Wally Wingert - Don Lewis
- Amy Jo Johnson - Linda
- Jean St. James - Mrs. Wurtz
- Ryan Fitzgerald - Todd
- Bob Bergen - Baby (voice)
- Jeffrey Schecter - Fuzzy
- Derek Basco - Kid
- Jay Lambert - Kid
- David Sawyer - Tall Man
- Jim Harbaugh - Jim Harbaugh
- Patrick Thomas O'Brien - Mr. Dewey
- Patrick Mickler - Coach
- Aaron Pruner - Iggy
- Kevin Mangold - Orville
- Mick Cain - Scott
- Caroline Keenan - Natilie
- Kevin Quinn - Nerd Marshall
- Jennifer Parsons - Mrs. Peterson
- Shaun Weiss - Hiram
- Michael White - Mr. Wilson
- Laura Galt - Carrie
- Laura Galt - Judge
- Bailey Chase - Zach Newton
- Justin Nimmo - Drew
- Christopher Liebe - Cal
- Amick Byram - Sponsor
- Karen Constantine - Sponsor
- Carole Goldman - Sponsor
- Cheryl Felicia Rhoads - Nurse Morgan
- Patricia Ayame Thomson - Dr. Ling
- Edrie Warner - Mrs. Norman
- Rana Kirkland - Ashley
- Lorna Raver - Dr. McGrath
- Lisa Moncure - Nurse Taylor
- Mary-Margaret Lewis - Mrs. Casey
- Roger Lodge - Rick
- Leanza Cornett - Carol
- Ken Davitian - Gus
- Michael Ryan Way - Health Official
- Elden Henson - Dirk
- Joe Ochman - Repairman
- Josh Cruze - Gilbert
- Gigi Bermingham - Shopper
- Oanh Nguyen - Drama Club Member
- Alec Ledd - Sammy
- Gary Collins - Skip Connors
- Jeremy Howard - Seymour
- Adrian Wenner - Gorden
- Stephen Poletti - Major Burton
- Megan Parlen - Mary Beth Pepperton
- Paige Peterson - Amy Wright
- Gregg Daniel - Colonel Sutton
- Terry Davis - Mrs. Tarlow
- Fred Willard - Mr. Huffington
- Alan Blumenfeld - Mr. Russell
- Josh Keaton - Glee Club
- Carol Locatell - Wanda
- Simon Billig - Mr. Johnson
- Kim Story - Mr. Oswald
- Peter Engel - Murray
- Alicia Leigh Willis - Leslie
- Mary Manofsky - Mrs. Smerdell
- Melissa Greenspan - Ernestine
- Amee Gray - Sandy
- Irene DeBari - Mrs. Lopez
- Flora Burke - Mrs. Foster
- Tom Fitzpatrick - Old Woman / Man
- Annie McElwain - Courtney
- Jim Jansen - Mr. Bobbins
- Laurie Franks - Mrs. Feinstein
- Audrey Wasilewski - Lucille Schmidlap
- Nick DeMauro - Mr. Martoni
- Raffi Di Blasio - Rob
- Sonya Eddy - Angie
- Marnette Patterson - Robyn Peterson
- Christopher Michael - Supervisor
- Erik Liberman - Ziggy
- Jesse Rodriguez - Newton
- Barbara London - Mrs. Mason
- Alvis Le Gate - Larry
- Christina Moore - Claire Martin
- Cynthia Mace - Mme. Dumars
- Daniel Namath - Jean
- Michael Matthys - Jacque
- Brittany Alyse Smith - Sandra Reynolds
- Denielle Fisher Johnson - Danielle
- Oliver Muirhead - Francois
- Ace Mask - M. Ledoux
- Zale Kessler - Cabbie
- Ryan Cash - Turner
- Stacie Foster - Shelly
- Rick Hammond - Brad
- Jay Michael Ferguson - Bryan
- Fred Saldone - Tough Guy
- Kent Kasper - Mr. Regal
- Kara Holden - Charlotte
- Alex Solowitz - Brock
- Joel Michaely - Myron
- Susan Isaacs - Woman
- Kyli Santiago - Angela
- Matthew Kimbrough - Rick Krumlauf
- Susan Wood - Kitty Katz
- Craig Susser - Del Stevens
- Doug Johnson - Bob
- Paul Sincoff - Jack Elliot
- Marika Casteel - Julia
- David Weisenberg - Professor
- Kymberly Newberry - Dr. Naughton
- Amelinda Embry - Mrs. Caruso
- Russell Young - Howard
- Russell Young - Abe
- Natalie Barish - Shirley
- Karen Abercrombie - Mrs. Payne
- Kenya D. Williamson - Amanda
- Myles O'Brien - Mr. Dillon
- Blake Hammond - Mr. Schecter
- Frankie Como - Big Al Gambino
- Derek Mears - Little Ed
- Michelle Weber - Dancer
- Tim Lounibos - Sergeant Meinhart
- Kelly Vaughn - Officer Connolly
- Marty Yost - Cadet Fred
- Carlease Burke - Sgt. Murphy
- Ray Proscia - Mr. Bellington
- Michael Worth - Sergeant Schilling
- James Paul Roeske II - Matthew
- Daniel Escobar - Mr. Carrey
- Susan Morgenstern - Mayor
- Pamela Gaye Walker - Matthew's Mom
- David Tuchman - Lou
- David Doty - Fenwick
- James McDonnell - Brian Campbell
- Biff Wiff - Ernie
- Roy Jenkins - Norm
- Jordana Capra - Betty
- Peter Engel
Dennis Haskins hace el papel de Mr. Belding.
Dustin Diamond interpreta a Samuel 'Screech' Powers en la serie.
Lindsey McKeon interpreta a Katie Peterson en la serie.
Ashley Tesoro interpreta a Liz Miller en la serie.
Tom Wade Huntington interpreta a Tony Dillon en la serie.
Samantha Esteban hace el papel de Maria Lopez.
Ben Gould hace el papel de Nicky Farina.
Anthony Harrell hace el papel de Eric Little.
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