| Thomas Middleditch | Richard Hendricks |
| T.J. Miller | Erlich Bachman |
| Josh Brener | Nelson 'Big Head' Bighetti |
| Martin Starr | Bertram Gilfoyle |
| Kumail Nanjiani | Dinesh Chugtai |
| Amanda Crew | Monica Hall |
| Zach Woods | Donald 'Jared' Dunn |
| Matt Ross | Gavin Belson |
| Suzanne Cryer | Laurie Bream |
| Jimmy O. Yang | Jian Yang |
| Jill E. Alexander | Patrice |
| Annie Sertich | C.J. Cantwell |
| Stephen Tobolowsky | Jack Barker |
| Chris Williams | Hoover |
| Mark Bloom | VC |
| Keye Chen | Dang |
| Ari Frenkel | Young Guy |
| Alyssa Gabrielle Rodriguez | Coleman Assistant |
| Dustyn Gulledge | Evan |
| Miljan Milosevic | Gleb |
| Bert Rotundo | Butch |
| Nikhil Shukla | Neel |
| Mizo Ghendar | Computer Customer Service |
| Alexander Michael Helisek | Claude |