- Joseph Ashton
- Â Otto Rocket / ... 65 episodes, 1999-2004
- Shayna Fox
- Â Reggie Rocket / ... 65 episodes, 1999-2004
- John Kassir
- Â Ray Rocket / ... 62 episodes, 1999-2004
- Ray Bumatai
- Â Tito Makani / ... 61 episodes, 1999-2004
- Ulysses Cuadra
- Â Twister Rodriguez / ... 59 episodes, 1999-2004
- Lombardo Boyar
- Â Lars Rodriguez / ... 41 episodes, 1999-2004
- Gary LeRoi Gray
- Â Sam Dullard 36 episodes, 2000-2004
- Sam Saletta
- Â Sam Dullard / ... 27 episodes, 1999-2002
- Henry Gibson
- Â Merv Stimpleton / ... 25 episodes, 1999-2004
- Jason Spisak
- Â Pi Piston / ... 24 episodes, 1999-2004
- Jordan Warkol
- Â Eddie / ... 23 episodes, 1999-2002
- Obba Babatundé
- Â Conroy / ... 21 episodes, 1999-2004
- Edie McClurg
- Â Violet Stimpleton / ... 21 episodes, 1999-2004
- Lauren Tom
- Â Trish / ... 21 episodes, 1999-2004
- Dominic Armato
- Â Sputz / ... 15 episodes, 1999-2004
- Dale Dye
- Â Lieutenant Tice Ryan 13 episodes, 1999-2004
- Dyana Ortelli
- Â Sandy Rodriguez / ... 13 episodes, 1999-2004
- Jennifer Hale
- Â Paula Dullard / ... 11 episodes, 1999-2004
- David Gallagher
- Â Oliver 10 episodes, 1999-2002
- Rosslynn Taylor Jordan
- Â MacKenzie / ... 9 episodes, 1999-2002
- Carlos Alazraqui
- Â Raoul Rodriguez / ... 9 episodes, 1999-2004
- Denise Dowse
- Â Officer Shirley 7 episodes, 2000-2004
- Gilbert Leal
- Â Twister Rodriguez 6 episodes, 2003-2004
- Sean Marquette
- Â Sam Dullard 6 episodes, 2003-2004
- Victor Wilson
- Â Announcer / ... 6 episodes, 2001-2004
- Matty Liu
- Â Keoni 5 episodes, 2000-2004
- Gregory Jbara
- Â Lame-o the Clown / ... 5 episodes, 1999-2000
- Kim Mai Guest
- Â Noelani / ... 5 episodes, 2002-2004
- Pamela Adlon
- Â Young Tito / ... 5 episodes, 1999-2002
- CCH Pounder
- Â Officer Shirley / ... 4 episodes, 1999-2000
- Jamie Cronin
- Â Clio / ... 3 episodes, 1999-2001
- Michael Gough
- Â Chester / ... 3 episodes, 2000-2004
- Olivia Hack
- Â Lizzie / ... 3 episodes, 2000-2003
- Christopher Rodriguez Marquette
- Â Donnie Lightening / ... 3 episodes, 2000-2002
- Miles Marsico
- Â Goofy Kid / ... 3 episodes, 1999-2002
- Jane Krakowski
- Â Breezy 2 episodes, 2002-2004
- Greg Coolidge
- Â Trent 2 episodes, 2002
- Mona Marshall
- Â Boys / ... 2 episodes, 1999-2002
- Bill Fiore
- Â Host of Family Fun Day / ... 2 episodes, 1999
- Dave Fennoy
- Â Announcer / ... 2 episodes, 1999-2000
- Charlie Adler
- Â Blimp Announcer / ... 2 episodes, 2000-2002
- David Neil Black
- Â Attendant / ... 2 episodes, 2003-2004
- James Sikking
- Â Vice Principal Healy 2 episodes, 2000
- Scott Mosenson
- Â Announcer 2 episodes, 1999-2002
- Michael Winther
- Â Eddie's Father / ... 2 episodes, 2000
- Mark Slaughter
- Â Announcer / ... 2 episodes, 2001
- Scott Wilk
- Â Theme Song Singer / ... 2 episodes, 2004
- Armin Shimerman
- Â Ben Robbins / ... 2 episodes, 1999-2000
- H. Richard Greene
- Â Judges / ... 2 episodes, 2000-2001
- Myles Jeffrey
- Â Shoobie #1 / ... 2 episodes, 2002-2003
- Mikey Kelley
- Â Game Show Runner / ... 2 episodes, 2002-2003
- Bart Flynn
- Â Bimini Boy / ... 2 episodes, 2003-2004
- Brooks Almy
- Â Mommi 2 episodes, 2003-2004
- Michael Stanton
- Â Balled Lead Singer / ... 2 episodes, 1999-2003
- Mike Lane
- Â Sam Dullard 1 episode, 2000
- Missy Giove
- Â Self 1 episode, 2004
- Vicki Lewis
- Â Mrs. Hasslebrain 1 episode
- Gregg Berger
- Â Desk Clerk / ... 1 episode, 1999
- Ethan Phillips
- Â Shop Owner 1 episode, 2002
- R. Lee Ermey
- Â Madison 1 episode, 2003
- John Crane
- Â Gopher 1 episode, 2004
- Dan Butler
- Â Slack 1 episode, 1999
- Jamie Alcroft
- Â Rhino 1 episode, 1999
- Vince Cefalu
- Â Health Inspector 1 episode, 1999
- Eric Lloyd
- Â Josh 1 episode, 2000
- Grant Heslov
- Â Lance 1 episode, 2000
- Bryan Torresdey
- Â Young Lars 1 episode, 2000
- Tony Hawk
- Â Tony Hawk 1 episode, 2001
- John Cho
- Â Hawaiian Buddy 1 episode, 2002
- Rel Hunt
- Â Maori / ... 1 episode, 2002
- David Berry
- Â Ralph 1 episode, 2002
- Gaille Heideman
- Â Mrs. Dunkel 1 episode, 2002
- Cutter Garcia
- Â Skunk 1 episode, 2004
- Jon Favreau
- Â Dick Shakley 1 episode, 1999
- Ethan Embry
- Â TV Announcer 1 episode, 1999
- Diane Delano
- Â Coach Lurlene Baker 1 episode, 2000
- Tim Dang
- Â Carl Leonard / ... 1 episode, 2000
- Ramiro González
- Â Young Twister 1 episode, 2000
- Dee Bradley Baker
- Â Bruce 1 episode, 2001
- Glen Chin
- Â Johnny Loo 1 episode, 2001
- Michael Welch
- Â Maori / ... 1 episode, 2002
- Lori Alan
- Â Game Voice 1 episode, 2002
- Toran Caudell
- Â Cool Kid 1 episode, 2002
- Kathy Najimy
- Â Patsy 1 episode, 2004
- Steve Guttenberg
- Â Billie Joe 1 episode, 2004
- Alison Inconstanti
- Â Carla 1 episode, 2004
- Michael Rosenbaum
- Â Sports Announcer 1 episode, 1999
- Debi Derryberry
- Â Kid Wallah 1 episode, 1999
- Michael Donovan
- Â Announcer / ... 1 episode, 1999
- Corey Burton
- Â Television Announcer 1 episode, 2000
- Taylor Allbright
- Â Teenage Girl 1 episode, 2001
- Grey Griffin
- Â Boys / ... 1 episode, 2002
- André Sogliuzzo
- Â Buick / ... 1 episode, 2002
- E.J. De La Pena
- Â Shoobie #2 / ... 1 episode, 2002
- Jason Graae
- Â Trainer 1 episode, 2002
- Cree Summer
- Â Crystal 1 episode, 2003
- Charles Kahlenberg
- Â Newscaster 1 episode, 2004
- Jesse Flanagan
- Â Mario 1 episode, 1999
- Mario Lupian
- Â Little Scotty 1 episode, 1999
- John DiMaggio
- Â Mongo 1 episode, 2000
- Daran Norris
- Â Television Reporter 1 episode, 2000
- Chi McBride
- Â Big Tony 1 episode, 2001
- Dan Bucatinsky
- Â Sportscaster 1 episode, 2001
- Aaron Carter
- Â Clutch Koerner 1 episode, 2001
- Chris M. Allport
- Â Reggie 1 episode, 2001
- Blake Ewing
- Â Attendant #1 / ... 1 episode, 2002
- Brian Donovan
- Â Show Host / ... 1 episode, 2002
- Carol Bach Rita
- Â Aunt #1 / ... 1 episode, 2002
- Chad Doreck
- Â Centola 1 episode, 2003
- Tinashe
- Â Creepy Voice / ... 1 episode, 2004
- Brady Bluhm
- Â Kid 1 episode, 2004
- Sean Donnellan
- Â Security Guard 1 episode, 2004
- Lynne Maclean
- Â Reporter / ... 1 episode, 2004
- Glenn Shadix
- Â Mayor 1 episode, 1999
- David Kaufman
- Â Cameraman 1 episode, 1999
- Iona Morris
- Â MacKenzie's Mother 1 episode, 1999
- Jeannie Elias
- Â Kid Wallah 1 episode, 1999
- Peter Lurie
- Â TV Weather Reporter 1 episode, 1999
- Kyle Gibson
- Â Wayne 1 episode, 1999
- Byrne Offutt
- Â Dog Walker 1 episode, 1999
- Mary Gross
- Â Eddie's Mother 1 episode, 2000
- Ruth Buzzi
- Â Dog Owner 1 episode, 2000
- John Ales
- Â Seal 1 episode, 2000
- Phil Buckman
- Â Locals 1 episode, 2000
- Brian Doyle-Murray
- Â Kam Koerner 1 episode, 2001
- Roger Rose
- Â Movie Trailer Announcer 1 episode, 2001
- Ahmet Zappa
- Â Lewis / ... 1 episode, 2002
- Vicki Davis
- Â Girl #2 / ... 1 episode, 2002
- Crystal Scales
- Â Boys 1 episode, 2002
- Efrain Figueroa
- Â Lost & Found Guy / ... 1 episode, 2002
- Gregory Grudt
- Â Attendant #2 1 episode, 2002
- Martin Brodeur
- Â Self 1 episode, 2002
- Danny Cooksey
- Â Production Assistant 1 episode, 2003
- Justice Coleman
- Â Skateboarder 1 episode, 2004
- Jill Talley
- Â Club Member #1 / ... 1 episode, 2000
- Michael Shamus Wiles
- Â Manager 1 episode, 2000
- Paul Eiding
- Â Judges 1 episode, 2000
- Noelle North
- Â MacKenzie's Friends 1 episode, 2001
- Margaret Smith
- Â Delivery Woman 1 episode, 2001
- Mark Hamill
- Â Ralph Sr. 1 episode, 2002
- Jim Ishida
- Â Coconut 1 episode, 2002
- Luc Robitaille
- Â Self 1 episode, 2002
- Dave Walsh
- Â Club Member #2 / ... 1 episode, 2000
- Marcus Toji
- Â Kent 1 episode, 2001
- Lisa Gehrke
- Â Eddie's Mother 1 episode, 2001
- Lara Jill Miller
- Â Girl #1 / ... 1 episode, 2002
- Jeremy Roenick
- Â Self 1 episode, 2002
- Monica Lee Gradischek
- Â Teen Girl 1 episode, 2003
- Matt Levin
- Â Waikiki Beach Boy #1 1 episode, 2004
- Tim Wiley
- Â Espo 1 episode, 1999
- Alan Oppenheimer
- Â Gravely Announcer / ... 1 episode, 2000
- Megan Morelock
- Â Stunt Girl 1 episode, 2000
- Affion Crockett
- Â Spectator 1 episode, 2002
- Suzanne Kent
- Â Reporter #2 1 episode, 2002
- Stan Harrington
- Â Maori / ... 1 episode, 2002
- Bob Miller
- Â Self 1 episode, 2002
- Robert Pine
- Â Santa Peterson 1 episode, 2003
- LaTonya Holmes
- Â Kid 1 episode, 2003
- Xander Berkeley
- Â MacKenzie's Father 1 episode, 1999
- Ken Steele
- Â Announcer 1 episode, 1999
- David Paymer
- Â Director 1 episode, 2000
- Danny Rimmer
- Â Tourist #1 1 episode, 2000
- Eric Marquette
- Â Skater #2 1 episode, 2002
- Scott Menville
- Â Dude #1 / ... 1 episode, 2003
- Andy Morrow
- Â Shoobie #2 1 episode, 2003
- Julian Stone
- Â Maori 1 episode, 2002
- Scott Weil
- Â Announcer / ... 1 episode, 2002
- April Winchell
- Â Announcer 1 episode, 2003
- Michael Yama
- Â Oni 1 episode, 2002
- Katrina Darrell
- Â Jingle Singer 1 episode, 2002
- Fergie
- Â Shaffika 1 episode, 2003
- Aspen Vincent
- Â Jingle Singer 1 episode, 2002
- Kenny Blank
- Â Bimini Boy 1 episode, 2003
- Bumper Robinson
- Â Jingle Singer 1 episode, 2002
- Ralph Waite
- Â Doc Freimouth 1 episode, 1999
- Bruce Weitz
- Â Longboarder 1 episode, 1999
- Josh Holland
- Â Locals 1 episode, 2000
- Brian Mars
- Â Airline Passenger / ... 1 episode, 2002
- Yuri Lowenthal
- Â Announcer 1 episode, 2003
- Greg Cipes
- Â Goth and Ballad Backup 1 episode, 2003
- Shaun White
- Â Self 1 episode, 2003
- Ptosha Storey
- Â Baker's Assistant 1 episode, 2003
- Jim Wise
- Â Ballad Backup Singer 1 episode, 2003
- Ralph Saenz
- Â Goth Lead Singer 1 episode, 2003
- Daniel Stark
- Â Self 1 episode, 2003