| Steve Carell | Michael Scott |
| Rainn Wilson | Dwight Schrute |
| John Krasinski | Jim Halpert |
| Jenna Fischer | Pam Beesly |
| B.J. Novak | Ryan Howard |
| Melora Hardin | Jan Levinson |
| David Denman | Roy Anderson |
| Leslie David Baker | Stanley Hudson |
| Brian Baumgartner | Kevin Malone |
| Kate Flannery | Meredith Palmer |
| Angela Kinsey | Angela Martin |
| Oscar Nuñez | Oscar Martinez
(as Oscar Nunez) |
| Phyllis Smith | Phyllis Lapin |
| Nancy Carell | Carol Stills
(as Nancy Walls) |
| Craig Robinson | Darryl Philbin |
| Marcus A. York | Billy Merchant |
| Creed Bratton | Creed Bratton |
| Bob Harrell | |
| Mindy Kaling | Kelly Kapoor |
| Mike Kruzel | |
| Paul Lieberstein | Toby Flenderson |
| Robert R. Shafer | Bob Vance
(as Bobby Ray Shafer) |
| Britain Spellings | Craps Dealer |
| Amanda Warren | |
| Angelo Middione | Bass Player - Kevins Garage Band
(uncredited) |
| Kate Quigley | Casino Waitress
(uncredited) |
| John H. Tobin | Dealer
(uncredited) |