| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Pamela Fryman | Crew | Directing | Director | 22 |
 David Guarascio | Crew | Production | Executive Producer, Creator | 22 |
 Moses Port | Crew | Production | Executive Producer, Creator | 22 |
 Allan Wasserman | Cast | Actor | Roger | 1 |
 Amy Farrington | Cast | Actress | Susan | 2 |
 Andy Richter | Cast | Actor | Clerk | 1 |
 Benjamin King | Cast | Actor | Don | 1 |
 Bunny Summers | Cast | Actress | Gladys | 1 |
 Charles Rahi Chun | Cast | Actor | Attendant | 1 |
 Christine Baranski | Cast | Actress | Annie Brennan | 22 |
 Cloris Leachman | Cast | Actress | Lois, Peter's Mother | 1 |
 David Garrison | Cast | Actor | Gordon Miller | 1 |
 Elizabeth Ann Bennett | Cast | Actress | Jeannie | 4 |
 Jaime Pressly | Cast | Actress | Alex | 8 |
 Jaime Ray Newman | Cast | Actress | Amanda | 1 |
 James Patrick Stuart | Cast | Actor | Roger | 1 |
Jason Lansing | Cast | Matt | 1 | |
 Jeff Harlan | Cast | Actor | Earl | 1 |
 Jeremy Kent Jackson | Cast | Actor | Randall | 1 |
 Jim Meskimen | Cast | Actor | Dr. Kassel | 1 |
 John Larroquette | Cast | Actor | Peter Brennan | 22 |
 John Ross Bowie | Cast | Actor | CocoNate | 1 |
 Johnathan McClain | Cast | Actor | Steven | 2 |
 Josh Ackerman | Cast | Actor | Co-Worker Sara Kisses | 1 |
 Kate Walsh | Cast | Actress | Joanna | 1 |
 Ken Lerner | Cast | Actor | Rick | 1 |
 Kevin Farley | Cast | Actor | Karl Pinski | 1 |
 Melanie Paxson | Cast | Actress | Sara Brennan | 22 |
 Miriam Flynn | Cast | Actress | Barb | 1 |
Molly Cheek | Cast | Actress | Diane Michaelson | 1 |
 Nick von Esmarch | Cast | Dr. Fishman | 1 | |
 Patrick Warburton | Cast | Actor | Bill Harris | 1 |
 Rachelle Carson | Cast | Actress | Cindy Miller | 1 |
 Richie Keen | Cast | Actor | Stu Miller | 1 |
 Rob Reinis | Cast | Actor | The Jer | 2 |
 Romy Walthall | Cast | Actress | Mrs. Gardner | 1 |
 Shawn Christian | Cast | Actor | Darren | 1 |
 Susan Beaubian | Cast | Actress | Bonnie | 1 |
 Susan Gibney | Cast | Actress | Maggie Harris | 14 |
 Suzanne Ford | Cast | Actress | Joyce | 1 |
 Travis Wester | Cast | Actor | Pat | 2 |
 Tyler Francavilla | Cast | Actor | Tim Brennan | 22 |
 Wendy Worthington | Cast | Actress | Dog Lady | 1 |
 Kathleen LaGue | Cast | Actress | Volvo Owner | 1 |
 Kyle Dunnigan | Cast | Actor | Kevin | 1 |
Melissa Molinaro | Cast | Actress | Hostess | 1 |
 Joseph R. Sicari | Cast | Actor | Bob | 1 |
 Danielle Schneider | Cast | Actress | Beth | 1 |
Paul David Stewart | Cast | Jimmy | 1 | |
 Aixa Clemente | Cast | Actress | The Therapist | 1 |
Sean T. James | Cast | Delivery Man | 1 | |
 Jeff Bryan Davis | Cast | Actor | Todd Brennan | 22 |
 David Weisenberg | Cast | Man | 1 | |
 Jack Impellizzeri | Cast | Actor | Giant Tooth | 1 |
 Ron Nicolosi | Cast | Actor | Man OS Voice | 1 |
Cathy Shambley | Cast | Cheryl | 1 | |
| Person | Type | Job | Role(s) | Episodes |
