| Rainn Wilson | Dwight Schrute |
| John Krasinski | Jim Halpert |
| Jenna Fischer | Pam Beesly |
| Catherine Tate | Nellie Bertram |
| Leslie David Baker | Stanley Hudson |
| Brian Baumgartner | Kevin Malone |
| Creed Bratton | Creed Bratton |
| Clark Duke | Clark |
| Kate Flannery | Meredith Palmer |
| Ellie Kemper | Erin Hannon |
| Angela Kinsey | Angela Martin-Lipton |
| Jake Lacy | Pete Miller |
| Oscar Nuñez | Oscar Martinez
(as Oscar Nunez) |
| Craig Robinson | Darryl Philbin |
| Phyllis Smith | Phyllis Vance |
| Ed Lauter | Sam Stone, Sr. |
| Will Greenberg | Sam Stone, Jr. |
| Rene Gube | Athlead Male Receptionist |
| Analeis Lorig | Athlead Employee |
| Adam Lustick | Athlead Employee |
| Ross Mackenzie | Dennis |
| Sam Richardson | Colin, Athlead Employee |
| Ben Silverman | Isaac |
| Nicholas Strong | |
| Hudson Phillips | Athlead Office Employee
(uncredited) |