| Name | Character | Episodes |
|---|---|---|
| Jenny Slate | Various characters | 30 |
| Nick Kroll | Various characters | 30 |
| John Mulaney | Various characters | 30 |
| Jon Daly | Various characters | 30 |
| Kara Hoffman | Self | 5 |
| Kathryn Hahn | Mikey's Mom | 4 |
| Brie Larson | College Girlfriend | 1 |
| Tim Heidecker | Jason | 1 |
| Judy Kain | 1 | |
| Rae Sunshine Lee | Sunshine (uncredited) | 1 |