- Mike Shapiro
- Â Additional Voices 13 episodes, 2004
- Christine Walters
- Â Babysitter, Nick's Mom / ... 13 episodes, 2004
- Nick Di Paolo
- Â Baby Nick 9 episodes, 2004
- Patrice O'Neal
- Â Baby Patrice 9 episodes, 2004
- Dane Cook
- Â Self 5 episodes, 2004
- Bill Burr
- Â Self 3 episodes, 2004
- Jay Mohr
- Â Self 3 episodes, 2004
- Mike Birbiglia
- Â Self 3 episodes, 2004
- Adam Ferrara
- Â Self 3 episodes, 2004
- Richard Jeni
- Â Self 3 episodes, 2004
- Patton Oswalt
- Â Self 2 episodes, 2004
- Janeane Garofalo
- Â Self 2 episodes, 2004
- Bobcat Goldthwait
- Â Self 2 episodes, 2004
- Denis Leary
- Â Self 2 episodes, 2004
- John Pinette
- Â Self 2 episodes, 2004
- Dana Gould
- Â Self 2 episodes, 2004
- Brian Regan
- Â Self 2 episodes, 2004
- Todd Barry
- Â Self 2 episodes, 2004
- Greg Giraldo
- Â Self 2 episodes, 2004
- Ed Byrne
- Â Self 2 episodes, 2004
- Greg Behrendt
- Â Self 2 episodes, 2004
- Sue Murphy
- Â Self 2 episodes, 2004
- Dwayne Kennedy
- Â Self 2 episodes, 2004
- Joey Vega
- Â Self 2 episodes, 2004
- Joe Yannetty
- Â Self 2 episodes, 2004
- Ted Alexandro
- Â Self 2 episodes, 2004
- Tim Young
- Â Self 2 episodes, 2004
- Chelsea Peretti
- Â Self 1 episode, 2004
- Lewis Black
- Â Self 1 episode, 2004
- Nick Swardson
- Â Self 1 episode, 2004
- Richard Belzer
- Â Self 1 episode, 2004
- Brian Posehn
- Â Self 1 episode, 2004
- Marc Maron
- Â Self 1 episode, 2004
- Jim Gaffigan
- Â Self 1 episode, 2004
- Gilbert Gottfried
- Â Self 1 episode, 2004
- Chris Hardwick
- Â Self 1 episode, 2004
- Al Madrigal
- Â Self 1 episode, 2004
- Bert Kreischer
- Â Self 1 episode, 2004
- Colin Quinn
- Â Self 1 episode, 2004
- Jeffrey Ross
- Â Self 1 episode, 2004
- Elon Gold
- Â Self 1 episode, 2004
- Steve Sweeney
- Â Self 1 episode, 2004
- Mitch Hedberg
- Â Self 1 episode, 2004
- Arj Barker
- Â Self 1 episode, 2004
- Kathleen Madigan
- Â Self 1 episode, 2004
- Dom Irrera
- Â Self 1 episode, 2004
- Johnny A. Sanchez
- Â Self 1 episode, 2004
- Greg Fitzsimmons
- Â Self 1 episode, 2004
- Bob Marley
- Â Self 1 episode, 2004
- Gregg Rogell
- Â Self 1 episode, 2004
- Christian Finnegan
- Â Self 1 episode, 2004
- John DiResta
- Â Self 1 episode, 2004
- Chris Phillips
- Â Man 1 episode, 2004
- Jeremy Hotz
- Â Self 1 episode, 2004
- Jake Johannsen
- Â Self 1 episode, 2004
- Juston McKinney
- Â Self 1 episode, 2004
- Hugh Fink
- Â Self 1 episode, 2004
- Cory Kahaney
- Â Self 1 episode, 2004
- Laurie Kilmartin
- Â Self 1 episode, 2004
- Joey Kola
- Â Self 1 episode, 2004
- Andrew Donnelly
- Â Self 1 episode, 2004
- Robert Hawkins
- Â Self 1 episode, 2004
- Bobby Collins
- Â Self 1 episode, 2004
- Tom McCaffrey
- Â Self 1 episode, 2004
- Jonathan Corbett
- Â Self 1 episode, 2004
- Russ Meneve
- Â Self 1 episode, 2004
- Eric Ingram
- Â Self 1 episode, 2004
- Eddie Brill
- Â Self 1 episode, 2004
- Tracy Smith
- Â Self 1 episode, 2004
- Paul Nardiz
- Â Self 1 episode, 2004
- Jim Short
- Â Self 1 episode, 2004
- Vic Henley
- Â Self 1 episode, 2004
- Paul Nardizzi
- Â Self 1 episode, 2004
- Jim Lauletta
- Â Self 1 episode, 2004
- Mike Shapiro
- Â Additional Voices unknown episodes