| Person: | Characters | Episodes | |
| • Richard Erdman | played | 38 Episodes | |
| • Jim Rash | played | 35 Episodes | |
| • Dino Stamatopoulos | played | 30 Episodes | |
| • Erik Charles Nielsen | played | 29 Episodes | |
| • Danielle Kaplowitz | played | 14 Episodes | |
| • John Oliver | played | 11 Episodes | |
| • Luke Youngblood | played | 10 Episodes | |
| • Charley Koontz | played | 9 Episodes | |
| • Craig Cackowski | played | 8 Episodes | |
| • Dominik Musiol | played | 7 Episodes | |
| • John Goodman | played | 6 Episodes | |
| • Bill Parks | played | 6 Episodes | |
| • Brady Novak | played | 6 Episodes | |
| • Lauren Stamile | played | 5 Episodes | |
| • Jeremy Scott Johnson | played | 5 Episodes | |
| • Jerry Minor | played | 4 Episodes | |
| • Eric Christian Olsen | played | 4 Episodes | |
| • Dan Bakkedahl | played | 4 Episodes | |
| • Max Barakat | played | 4 Episodes | |
| • John Platt | played | 3 Episodes | |
| • J. P. Manoux | played | 3 Episodes | |
| • Malcolm-Jamal Warner | played | 3 Episodes | |
| • Jordan Black | played | 3 Episodes | |
| • Michael K. Williams (3) | played | 3 Episodes | |
| • John Michael Higgins (1) | played | 3 Episodes | |
| • Marcy McCusker | played | 3 Episodes | |
| • Mel Rodriguez | played | 3 Episodes | |
| • Greg Cromer | played | 3 Episodes | |
| • Abigail Marlowe | played | 3 Episodes | |
| • Derwin Jordan | played | 3 Episodes | |
| • Wil Garret | played | 3 Episodes | |
| • Kelsey Gunn | played | 3 Episodes | |
| • Dc Pierson | played | 3 Episodes | |
| • Travis Richey | played | 3 Episodes | |
| • David Neher | played | 3 Episodes | |
| • Larry Cedar | played | 2 Episodes | |
| • Sara Van Horn | played | 2 Episodes | |
| • Iqbal Theba | played | 2 Episodes | |
| • Andy Dick | played | 2 Episodes | |
| • Patton Oswalt | played | 2 Episodes | |
| • Rob Corddry | played | 2 Episodes | |
| • Malcolm McDowell | played | 2 Episodes | |
| • Betty White | played | 2 Episodes | |
| • Kevin Corrigan | played | 2 Episodes | |
| • Eddie Pepitone | played | 2 Episodes | |
| • Angela Trimbur | played | 2 Episodes | |
| • Anthony Michael Hall | played | 2 Episodes | |
| • Andrea DeOliveira | played | 2 Episodes | |
| • Giancarlo Esposito | played | 2 Episodes | |
| • Ken Jeong | played | 2 Episodes | |
| • Irene Choi | played | 2 Episodes | |
| • Marc Jablon | played | 2 Episodes | |
| • Alex Schemmer | played | 2 Episodes | |
| • Katherine Von Till | played | 2 Episodes | |
| • Jarod Einsohn | played | 2 Episodes | |
| • Matt L. Jones | played | 2 Episodes | |
| • Sashi Bommakanty | played | 2 Episodes | |
| • Bertrand Roberson Jr. | played | 2 Episodes | |
| • Giancarlo Molina | played | 2 Episodes | |
| • Lejon Stewart | played | 2 Episodes | |
| • Meggie McFadden | played | 2 Episodes | |
| • Dominic Dierkes | played | 2 Episodes | |
| • Robert Tarpinian | played | 2 Episodes | |
| • Alex Klein | played | 2 Episodes |