- Grant Shaud
- Â Dr. Jerrimiah 'Jerry' Beene 24 episodes, 2003-2004
- Wendy Makkena
- Â Charlotte Caraline Beene 24 episodes, 2003-2004
- Grant Rosenmeyer
- Â Oliver David Beene 24 episodes, 2003-2004
- Andrew Lawrence
- Â Tayler 'Ted' Mark Beene 24 episodes, 2003-2004
- Daveigh Chase
- Â Joyce 23 episodes, 2003-2004
- Taylor Emerson
- Â Michael 23 episodes, 2003-2004
- David Cross
- Â Narrator 9 episodes, 2003-2004
- Annie Korzen
- Â Mrs. Heller 9 episodes, 2004
- AJ Michalka
- Â Bonnie 9 episodes, 2003-2004
- Ben Bookbinder
- Â Neal 8 episodes, 2004
- Maggie Grace
- Â Elke 8 episodes, 2004
- Perry Anzilotti
- Â Principal Shriner 4 episodes, 2003-2004
- A.J. Trauth
- Â Harvey Dillman / ... 4 episodes, 2003-2004
- Amy Bruckner
- Â Susan Brotsky 4 episodes, 2003-2004
- Victor Raider-Wexler
- Â Super 3 episodes, 2003-2004
- Paul Schackman
- Â Mr. Plotkin 3 episodes, 2003-2004
- Jeremy Kramer
- Â Marv Kranski 3 episodes, 2003-2004
- Dominic Scott Kay
- Â Young Oliver 3 episodes, 2003-2004
- Jon Polito
- Â Mr. Rayfield 2 episodes, 2003-2004
- Susan Chuang
- Â Ying-Mei Kranski 2 episodes, 2003-2004
- Ethan Phillips
- Â Mr. Stitt 2 episodes, 2004
- Kevin G. Schmidt
- Â Murray Brillcott 2 episodes, 2004
- Louis Lombardi
- Â George Novogroder 2 episodes, 2004
- David Shatraw
- Â Mr. Risigno 2 episodes, 2003-2004
- Meghan Lynch
- Â Janet 2 episodes, 2003-2004
- Simon Harvey
- Â Adult Michael / ... 2 episodes, 2003-2004
- Robyn Moran
- Â Adult Susan 2 episodes, 2003-2004
- Helen Slayton-Hughes
- Â Mrs. Carroll 2 episodes, 2004
- Casey Floresca
- Â Cheerleader 2 episodes, 2004
- Willy Goldstein
- Â Young Oliver 2 episodes, 2004
- Wendie Malick
- Â Mrs. Darcel 1 episode, 2003
- Richard Kind
- Â Barnaby Rollins 1 episode, 2004
- Sammy Kahn
- Â Nickname O'Reily 1 episode, 2004
- Brady Corbet
- Â Spencer 1 episode, 2003
- Stephen Tobolowsky
- Â Ringmaster Bob 1 episode, 2003
- Kurt Fuller
- Â Mitch 1 episode, 2003
- Heidi Swedberg
- Â Cynthia Vogel 1 episode, 2003
- Jeffrey D. Sams
- Â Terrence Gilbert 1 episode, 2003
- Adrienne Janic
- Â Suzy 1 episode, 2003
- Elaine Hendrix
- Â Aunt Connie 1 episode, 2004
- Caroline Aaron
- Â Charlotte's Mom 1 episode, 2004
- Joel McKinnon Miller
- Â Cop 1 episode, 2004
- Mark Moses
- Â Dr. Herbert 1 episode, 2004
- John Lehr
- Â J.D. Salinger 1 episode, 2004
- Elizabeth Ruscio
- Â Marilyn 1 episode, 2004
- Michael McShane
- Â Fat Man 1 episode, 2003
- John D'Aquino
- Â Bernard Vogel 1 episode, 2003
- Pat Finn
- Â Security Guard 1 episode, 2003
- Malia Mathis
- Â Jerry's Assistant 1 episode, 2003
- Mitchel Musso
- Â One Nad Nussbaum 1 episode, 2004
- Emmett Shoemaker
- Â Sunburn-Boy 1 episode, 2004
- Lisa Waltz
- Â Michael's Mother 1 episode, 2003
- Robert Bailey Jr.
- Â Floyd Gilbert 1 episode, 2003
- Jonathan Nichols-Navarro
- Â Herb Meyer 1 episode, 2003
- Romy Rosemont
- Â Mrs. Martinelli 1 episode, 2004
- John Prosky
- Â David 1 episode, 2004
- Wayne Federman
- Â Teacher 1 episode, 2004
- Sunday Theodore
- Â Linda 1 episode, 2004
- Judith Scott
- Â Wanda Gilbert 1 episode, 2003
- Michael Edwin
- Â Man with Car 1 episode, 2003
- Julie Benz
- Â Cigarette Girl 1 episode, 2004
- Josh Waters
- Â Ward McIntyre 1 episode, 2004
- Sean Everett
- Â Clown 1 episode, 2003
- Mark DeCarlo
- Â Buddy Fontaine 1 episode, 2004
- Robert Shapiro
- Â Robert Shapiro 1 episode, 2004
- J.D. Lewis
- Â Josh 1 episode, 2003
- Alan Wilder
- Â Pat O'Shaughnessy 1 episode, 2004
- Joel McHale
- Â Man in Elevator 1 episode, 2003
- Geraldine Hughes
- Â Eunice O'Shaughnessy 1 episode, 2004
- Shawn Pyfrom
- Â Bill 1 episode, 2003
- Symba
- Â Hot Mom 1 episode, 2003
- Steffani Brass
- Â Bee Girl 1 episode, 2003
- Marcia Ann Burrs
- Â Old Woman 1 episode, 2003
- Patrick Gallo
- Â Lou 1 episode, 2003
- Antoinette Spolar
- Â Mrs. Brotsky 1 episode, 2003
- Katherine Ann McGregor
- Â Martha 1 episode, 2003
- Jesika Reynolds
- Â Whitney Gilbert 1 episode, 2003
- Frank Crim
- Â Rumor Monger #1 1 episode, 2003
- Deborah Carson
- Â Rumor Monger 1 episode, 2003
- Will Klipstine
- Â Delivery Guy 1 episode, 2003
- Loren Berman
- Â Kid 1 episode, 2003
- John Maynard
- Â Mr. Tinkles the Clown 1 episode, 2003
- Graham Murdoch
- Â Bully 1 episode, 2003
- Randall Bosley
- Â Middle Aged Man 1 episode, 2003
- Ross Gottstein
- Â Doctor 1 episode, 2003
- Lance Ohnstad
- Â Relay Starter 1 episode, 2003
- Gary Davies
- Â Shriner's Brother 1 episode, 2003
- Justin Koznar
- Â Steve 1 episode, 2003
- Curtis Armstrong
- Â Hobo Bob 1 episode, 2004
- Brandon Routh
- Â Brian 1 episode, 2004
- Eric Lange
- Â Doctor 1 episode, 2004
- Norm MacDonald
- Â Hobo Bob 1 episode, 2004
- Dan Gauthier
- Â Stan 1 episode, 2004
- Howard Hesseman
- Â Dr. Fenniger 1 episode, 2004
- Eric Allan Kramer
- Â Krazy King 1 episode, 2004
- Sam Horrigan
- Â Coach Wright 1 episode, 2004
- Alexander Gould
- Â Young Ted 1 episode, 2004
- Kenneth Mars
- Â Carl the Super 1 episode, 2004
- Tom McGowan
- Â Bob 1 episode, 2004
- Scott L. Schwartz
- Â Massage Therapist 1 episode, 2004
- Todd Bosley
- Â Glen 1 episode, 2004
- Keith MacKechnie
- Â Jerry's Dad 1 episode, 2004
- Sam Lerner
- Â The Kid 1 episode, 2004
- Adam Shapiro
- Â Stoner Guy 1 episode, 2004
- Carter Jenkins
- Â Boy 1 episode, 2004
- Michael Bailey Smith
- Â Mauler Madson 1 episode, 2004
- Bashir Salahuddin
- Â Bouncer 1 episode, 2004
- Todd Sherry
- Â Victor 1 episode, 2004
- Jonathan Chase
- Â Chad 1 episode, 2004
- Whitney Anderson
- Â Grace King 1 episode, 2004
- Beth Hall
- Â Skittish Female Tenant 1 episode, 2004
- Regan Burns
- Â School Photographer 1 episode, 2004
- Shane Ashton Haboucha
- Â Lackey #1 1 episode, 2004
- Katelin Petersen
- Â Loogie 1 episode, 2004
- Jeff Corbett
- Â Ian 1 episode, 2004
- Soren Fulton
- Â Howie 1 episode, 2004
- Ian Stanley
- Â Mickey Mantle 1 episode, 2004
- Jack Salvatore Jr.
- Â Pat - Guitarist 1 episode, 2004
- Jim Lau
- Â Chinese Assistant 1 episode, 2004
- Cole Petersen
- Â Bobby 1 episode, 2004
- Eddie Hassell
- Â Full-Moon Murphy 1 episode, 2004
- Cameron Bowen
- Â Leader of Quartet 1 episode, 2004
- Conor Duffy
- Â Salesman 1 episode, 2004
- Ray Buffer
- Â Wrestler 1 episode, 2004
- Jane Edith Wilson
- Â Neighbor 1 episode, 2004
- Amy Castle
- Â Bonnie 1 episode, 2004
- Tim Herzog
- Â Bonnie's Father 1 episode, 2004
- Marsha Clark
- Â Mrs. Perkins 1 episode, 2004
- Keaton Savage
- Â Kid 1 episode, 2004
- Nick Nordella
- Â Rick Donavan 1 episode, 2004
- Claudia Stedelin
- Â Music Teacher 1 episode, 2004
- Vince Melocchi
- Â Police Officer 1 episode, 2004
- Heidi Kaufman
- Â Mrs. Lacey 1 episode, 2004
- Alex Boling
- Â Weiner-Rama Guy 1 episode, 2004
- Patrick Dorn
- Â Littlest Quartet Member 1 episode, 2004
- Ren Montero
- Â Little Girl's Mother 1 episode, 2004
- Tracy Pfau
- Â Mrs. Novogroder 1 episode, 2004
- Anthony Ghannam
- Â Punch Face 1 episode, 2004
- David Hadinger
- Â Dr. Rosenblatt 1 episode, 2004
- Pat Battistini
- Â Hobo 1 episode, 2004
- Alan Charof
- Â Uncle Bernie 1 episode, 2004
- Palmer Scott
- Â Big Al 1 episode, 2004
- David Carey Foster
- Â Salesman 1 episode, 2004
- Jordan Allen
- Â Ralph 1 episode, 2004
- Steven Alford
- Â Jerry's Neighbor 1 episode, 2004
- Michelle Shore
- Â The Kid 1 episode, 2004
- Tony Rossi
- Â Neighbor 1 episode, 2004
- Jarred Endres
- Â Bruno Steel 1 episode, 2004
- Christopher Plumley
- Â Projector Kid 1 episode, 2004
- Janice Ann Johnson
- Â Mrs. Loman 1 episode, 2004
- Lee Schall
- Â Dr. Collins 1 episode, 2004
- Kalan Shires
- Â Zits Fitzsimmons 1 episode, 2004
- Rob McCarthy
- Â Mr. Reynolds 1 episode, 2004
- Eric Chase
- Â Older Ralph 1 episode, 2004
- Billy Gooch
- Â Creepy Neighbor 1 episode, 2004
- Stacy Ann Garcia
- Â Spin The Bottle Girl 1 episode, 2004
- Randall Barnwell
- Â Mr. Borasco (uncredited) 1 episode, 2004