- Amanda Bynes
- Â Various / ... 53 episodes, 1999-2002
- Drake Bell
- Â Various / ... 27 episodes, 1999-2002
- Nancy Sullivan
- Â Various / ... 26 episodes, 1999-2002
- John Kassir
- Â Various / ... 14 episodes, 1999-2000
- Raquel Lee
- Â Various / ... 14 episodes, 1999-2000
- Josh Peck
- Â Regular Performer / ... 13 episodes, 2000-2002
- Dan Schneider
- Â Mr. Oldman 9 episodes, 1999-2002
- Jamie Snow
- Â Tammy / ... 7 episodes, 1999-2002
- Andrew Hill Newman
- Â Mr. Gullible / ... 6 episodes, 1999-2001
- E.E. Bell
- Â Barney 5 episodes, 2000-2002
- Lara Jill Miller
- Â Kathy 5 episodes, 2000-2002
- Ashley Edner
- Â Rebecca Fyoomay / ... 5 episodes, 2000-2002
- Ashley Tisdale
- Â Cold Curer / ... 4 episodes, 2000-2001
- Gary Anthony Williams
- Â Bailiff 4 episodes, 1999-2000
- James Doherty
- Â Audience Page / ... 4 episodes, 1999-2000
- Carole Gutierrez
- Â Security Guard 4 episodes, 1999-2000
- Jenna Morrison
- Â Debbie 4 episodes, 1999-2000
- Molly Orr
- Â Misty Raines 4 episodes, 2000-2002
- Andrew McFarlane
- Â Nick 3 episodes, 2000-2001
- Nicole Tubiola
- Â Cheerleader 3 episodes, 2000-2001
- Steven Anthony Lawrence
- Â Justin / ... 3 episodes, 1999-2002
- Taylor Emerson
- Â Preston Taynt 3 episodes, 2000-2002
- Rachel Grate
- Â Audience Kid #1 / ... 3 episodes, 2000-2001
- Paul Parducci
- Â Murphy / ... 3 episodes, 2000-2001
- Courtney Mun
- Â Joann / ... 3 episodes, 2000-2001
- John Hoberg
- Â Mr. Taynt 3 episodes, 2000
- Taran Killam
- Â Spaulding / ... 3 episodes, 2001-2002
- Chris Hunter
- Â Magician 2 episodes, 2000-2001
- David Pressman
- Â David / ... 2 episodes, 2000-2001
- Julius Charles Ritter
- Â Ernie Morton 2 episodes, 1999-2001
- Jake Sandvig
- Â Leif 2 episodes, 1999-2002
- Ethan Glazer
- Â Self 2 episodes, 1999-2002
- Orlando Ashley
- Â Bailiff 2 episodes, 1999-2002
- Steffani Brass
- Â Becky / ... 2 episodes, 1999-2001
- Vitamin C
- Â Self / ... 2 episodes, 1999-2000
- Adam Weisman
- Â Various 2 episodes, 1999-2000
- Zane Carney
- Â Amanda's Date / ... 2 episodes, 1999-2000
- Andrew Keegan
- Â Self / ... 2 episodes, 1999
- Serah D'Laine
- Â Danielle Spencer 2 episodes, 2000-2002
- Jeremy Rowley
- Â Blockblister Customer #2 / ... 2 episodes, 2000-2002
- Shiri Appleby
- Â Nerd 2 episodes, 2000
- Ron Fassler
- Â Dad 2 episodes, 2000
- Winifred Freedman
- Â Ms. Handwreck / ... 2 episodes, 2000
- J. Anthony McCarthy
- Â Thug 2 episodes, 2000
- Michael Oosterom
- Â Regular Performer 2 episodes, 2000
- Dai Kornberg
- Â Goat Man 2 episodes, 2000
- Nick Ahlgrim
- Â Background Role / ... 2 episodes, 2000
- Tom Huben
- Â Customer / ... 2 episodes, 2000
- Lauren Petty
- Â Brie 2 episodes, 2001-2002
- Kent Kasper
- Â Heart Attack Victum 2 episodes, 2001
- Jillian Bynes
- Â Key Guest 2 episodes, 2001
- Mike Grief
- Â Camera Man Joe 2 episodes, 2002
- Vergi Rodriguez
- Â Self 1 episode, 1999
- Kenan Thompson
- Â Self 1 episode, 1999
- Maliabeth Johnson
- Â Daughter 1 episode, 1999
- Henry Gibson
- Â Helicopter Pilot 1 episode, 1999
- Kel Mitchell
- Â Self 1 episode, 1999
- Josh Server
- Â Self 1 episode, 1999
- Jason Cook
- Â Audience Member 1 episode, 1999
- Jay Caputo
- Â Pizza Guy 1 episode, 1999
- Adam Vernier
- Â Bouncer 1 episode, 1999
- Deena-Marie Deeny Dakota Consiglio
- Â Production Assistant 1 episode, 1999
- Camryn Walling
- Â Regular Performer 1 episode, 1999
- Ryan Cusino
- Â Various 1 episode, 1999
- Adam Brody
- Â Greg Brady 1 episode, 2000
- Ben Diskin
- Â Joey 1 episode, 2000
- Kavan Reece
- Â Jamie Bradford 1 episode, 2000
- Nellie Sciutto
- Â Mrs. Feemur 1 episode, 2000
- Christopher Michael
- Â Sailor #2 1 episode, 2000
- John Lee Ames
- Â Guy In Audience 1 episode, 2000
- Dea Lawrence
- Â Aunt Sophie 1 episode, 2000
- Devin Lima
- Â Self - Musical Guest 1 episode, 2000
- Brad Fischetti
- Â Self - Musical Guest 1 episode, 2000
- Colette Divine
- Â Jeremy's Mom 1 episode, 2000
- Rich Cronin
- Â Self - Musical Guest 1 episode, 2000
- Casey Genton
- Â Peter Brady 1 episode, 2000
- LFO
- Â Themselves - Musical Guests 1 episode, 2000
- Evan Paley
- Â Boy 1 episode, 2000
- Rachel Glenn
- Â Carolyn 1 episode, 2000
- Matthew St. Clair
- Â Kid Calling In #2 1 episode, 2000
- Bill Rutkoski
- Â Prop Guy 1 episode, 2000
- Terry Hard
- Â Al Gore 1 episode, 2000
- Kehan Miller
- Â Greg 1 episode, 2000
- Joie Magidow
- Â Maggie 1 episode, 2000
- Jessica Marie Taylor
- Â Marcia Brady 1 episode, 2000
- Tey Punsalan
- Â Dancer 1 episode, 2000
- Christopher Emerson
- Â Trevor 1 episode, 2002
- Curtis Armstrong
- Â Video Store Clerk 1 episode, 2001
- Kathie Lee Gifford
- Â Princess Whiff 1 episode, 2001
- David Graf
- Â EMT 1 episode, 2001
- Brian Peck
- Â French Chef 1 episode, 2001
- Patrick Bristow
- Â Coach 1 episode, 2001
- James Lew
- Â Neeko 1 episode, 2001
- Michael Gilden
- Â Dancing Waiter 1 episode, 2001
- Gregg Daniel
- Â Neighbor 1 episode, 2001
- Amy Tolsky
- Â Nurse 1 episode, 2001
- Palmer Scott
- Â French Waiter 1 episode, 2001
- T.J. Beacom
- Â Kid 1 episode, 2001
- Scott Parietti
- Â BaseBall (segment: When School Mascots Attack") 1 episode, 2001
- Riley Brock
- Â Audience member / ... 1 episode, 2001
- Melissa D. Madison
- Â Annoying Customer 1 episode, 2001
- Haylie Duff
- Â Elyse 1 episode, 2002
- Keisuke Hoashi
- Â Sailor 1 episode, 2002
- Ken Campbell
- Â Grandpa 1 episode, 2002
- David St. James
- Â Principal Flange 1 episode, 2002
- Stephen Jared
- Â Sailor #3 1 episode, 2002
- Guy Stevenson
- Â Robber 1 episode, 2002
- Cheyenne Wilbur
- Â Circus Performer 1 episode, 2002
- David Trice
- Â Man Covered in Bubbles 1 episode, 2002
- Carey Eidel
- Â Moody's Dad 1 episode, 2002
- Robyn Moran
- Â Idiot #2 1 episode, 2002
- Alexander Burke
- Â Self - Musical Guest 1 episode, 2002
- Albert P. Santos
- Â Mascout 1 episode, 2002
- Jason P. Robbins
- Â Boy in Audience 1 episode, 2002
- Oren Williams
- Â Kid 1 episode
- Eric Dean Seaton
- Â Swiss Guy (1999-2000) unknown episodes
- Jessica Chaffin
- Â 'Dare Show' Contestant / ... unknown episodes
- Kathy Wagner
- Â Little Red Riding Hood unknown episodes
- Michael Wise
- Â Moses unknown episodes
- Traci Swain
- Â Regular Performer unknown episodes
- Mark St. Amant
- Â French Painter unknown episodes
- Amy Elizabeth
- Â Regular Performer unknown episodes
- Kevin Tash
- Â Steve (uncredited) 5 episodes, 1999-2000
- Terry Ray
- Â Waiter (uncredited) 1 episode, 2000
- Gene Kaz
- Â Scared Boy (uncredited) 1 episode, 2002