| Person: | Characters | Episodes | |
| • Stephen Tobolowsky | played | 23 Episodes | |
| • Callum Keith Rennie | played | 14 Episodes | |
| • Jason Beghe | played | 13 Episodes | |
| • Carla Gallo | played | 11 Episodes | |
| • Carla Gugino | played | 10 Episodes | |
| • Embeth Davidtz | played | 10 Episodes | |
| • Kathleen Turner | played | 10 Episodes | |
| • Rachel Miner | played | 10 Episodes | |
| • Scott M. Foster | played | 10 Episodes | |
| • Tim Minchin | played | 10 Episodes | |
| • Diane Farr | played | 9 Episodes | |
| • Maggie Grace | played | 9 Episodes | |
| • Eva Amurri | played | 9 Episodes | |
| • RZA | played | 9 Episodes | |
| • Ellen Woglom | played | 9 Episodes | |
| • Camilla Luddington | played | 9 Episodes | |
| • Pamela Adlon | played | 8 Episodes | |
| • Damian Young | played | 8 Episodes | |
| • Paula Marshall | played | 8 Episodes | |
| • Peter Gallagher | played | 8 Episodes | |
| • Meagan Good | played | 7 Episodes | |
| • Angus MacFadyen | played | 6 Episodes | |
| • Ana Rey | played | 6 Episodes | |
| • Addison Timlin | played | 6 Episodes | |
| • Zoe Kravitz | played | 6 Episodes | |
| • Chris Williams (1) | played | 5 Episodes | |
| • Maggie Wheeler | played | 5 Episodes | |
| • Rob Lowe | played | 5 Episodes | |
| • Madchen Amick | played | 5 Episodes | |
| • Michael Ealy | played | 5 Episodes | |
| • Ezra Miller | played | 5 Episodes | |
| • Madeline Zima | played | 4 Episodes | |
| • Patrick Fischler | played | 4 Episodes | |
| • Judy Greer | played | 4 Episodes | |
| • Rick Springfield | played | 4 Episodes | |
| • Jonathan Kasdan | played | 4 Episodes | |
| • Natalie Zea | played | 4 Episodes | |
| • Amy Price Francis | played | 4 Episodes | |
| • Sarah Wynter | played | 4 Episodes | |
| • Steve Jones (2) | played | 4 Episodes | |
| • Quin Baron | played | 4 Episodes | |
| • Reed Baron | played | 4 Episodes | |
| • Melissa Stephens | played | 4 Episodes | |
| • Lee Arenberg | played | 3 Episodes | |
| • Camille Langfield | played | 3 Episodes | |
| • Johann Urb | played | 3 Episodes | |
| • Hal Ozsan | played | 3 Episodes | |
| • Lance Barber | played | 3 Episodes | |
| • Alanna Ubach | played | 3 Episodes | |
| • Jacquie Barnbrook | played | 3 Episodes | |
| • Michelle Lombardo | played | 3 Episodes | |
| • Myles Trifon | played | 3 Episodes | |
| • Jory Glick | played | 3 Episodes | |
| • Shira Kreitenberg | played | 3 Episodes | |
| • Samantha Maloney | played | 3 Episodes | |
| • Stephanie Hunt | played | 3 Episodes | |
| • Dustin Ybarra | played | 3 Episodes | |
| • Glenna Gasparian | played | 3 Episodes | |
| • Melissa McFail | played | 3 Episodes | |
| • Camden Gray | played | 3 Episodes | |
| • Marcus Folmar | played | 2 Episodes | |
| • Larry Poindexter | played | 2 Episodes | |
| • Jorge Garcia | played | 2 Episodes | |
| • Kathy Christopherson | played | 2 Episodes | |
| • Michele Nordin | played | 2 Episodes | |
| • Carly Pope | played | 2 Episodes | |
| • Angela Bullock | played | 2 Episodes | |
| • Angela Trimbur | played | 2 Episodes | |
| • Marilyn Manson | played | 2 Episodes | |
| • Jim Calloway | played | 2 Episodes | |
| • Allison McAtee | played | 2 Episodes | |
| • Fatso Fasano | played | 2 Episodes | |
| • John Scarangello | played | 2 Episodes | |
| • Jim Tavaré | played | 2 Episodes | |
| • Robert Gilling | played | 2 Episodes | |
| • Luenell | played | 2 Episodes | |
| • Robert Merrill (2) | played | 2 Episodes | |
| • Elizabeth Nicole | played | 2 Episodes | |
| • Meghan Falcone | played | 2 Episodes | |
| • Kristina Kruz | played | 2 Episodes | |
| • Zita Vass | played | 2 Episodes |