| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Jonathan Katz | Crew | Creator | Creator | |
 Julia Louis-Dreyfus | Crew | Crew | Additional Writing | 1 |
 Loren Bouchard | Crew | Writing | Writer | 1 |
 Al Franken | Cast | Actor | 1 | |
 Anthony Clark | Cast | Actor | 1 | |
 Barry Sobel | Cast | Actor | 1 | |
 Ben Stiller | Cast | Actor | 1 | |
 Bob Odenkirk | Cast | Actor | 1 | |
 Bobby Slayton | Cast | Actor | 1 | |
 Brian Kiley | Cast | 1 | ||
 Carol Leifer | Cast | Actress | 1 | |
 Caroline Rhea | Cast | Actress | 1 | |
 Conan O'Brien | Cast | Actor | 1 | |
 Dave Attell | Cast | Actor | 2 | |
 David Duchovny | Cast | Actor | 1 | |
 Denis Leary | Cast | Actor | 1 | |
 Dick Smothers | Cast | Actor | 1 | |
 Dom Irrera | Cast | Actor | 3 | |
Elayne Boosler | Cast | 1 | ||
 Emo Philips | Cast | Actor | 1 | |
 Garry Shandling | Cast | Actor | 1 | |
 Gilbert Gottfried | Cast | Actor | 2 | |
 H. Jon Benjamin | Cast | Actor | Ben Katz (voice) | 81 |
 Janeane Garofalo | Cast | Actress | 1 | |
 Jeff Garlin | Cast | Actor | 1 | |
 Jim Gaffigan | Cast | Actor | 2 | |
 John Pinette | Cast | Actor | 1 | |
Jonathan Katz | Cast | Actor | Dr. Katz (voice) | 81 |
 Joy Behar | Cast | Actress | 1 | |
 Judy Tenuta | Cast | Actress | 1 | |
Julia Louis-Dreyfus | Cast | Actress | Julia (voice) | 1 |
 Kathy Griffin | Cast | Actress | 2 | |
 Larry Miller | Cast | Actor | 1 | |
 Laura Kightlinger | Cast | Actress | 1 | |
 Laura Silverman | Cast | Actress | Laura the Receptionist (voice) | 81 |
 Lew Schneider | Cast | Actor | 1 | |
 Louis C.K. | Cast | Actor | 2 | |
 Marc Maron | Cast | Actor | 1 | |
 Mark Schiff | Cast | Actor | 1 | |
Michael Rowe | Cast | Actor | 1 | |
 Mitch Hedberg | Cast | Actor | 2 | |
 Patton Oswalt | Cast | Actor | 1 | |
 Paul F. Tompkins | Cast | Actor | 1 | |
 Ray Romano | Cast | Actor | 7 | |
 Richard Lewis | Cast | Actor | 1 | |
 Rita Rudner | Cast | Actress | 1 | |
 Robert Klein | Cast | Actor | 1 | |
Robert Schimmel | Cast | 1 | ||
 Sandra Bernhard | Cast | Actress | 1 | |
 Steven Wright | Cast | Actor | 2 | |
Tom Agna | Cast | 1 | ||
 Tom Kenny | Cast | Actor | 2 | |
 Wendy Liebman | Cast | Actress | 2 | |
 Winona Ryder | Cast | Actress | 1 | |
 Brian Regan | Cast | Actor | 2 | |
 Tom Smothers | Cast | Actor | 1 | |
Will LeBow | Cast | Actor | Stanley (voice) | 81 |
 Elayne Boosler | Cast | Actress | 1 | |
Julianne Bond | Cast | Julie the Bartender (voice) | 81 | |
| Person | Type | Job | Role(s) | Episodes |
