| cast |
 |
|
|
|
| Joseph Gordon-Levitt | Joseph Gordon-Levitt as Adam | Seth Rogen | Seth Rogen as Kyle |
| Anna Kendrick | Anna Kendrick as Katie | Bryce Dallas Howard | Bryce Dallas Howard as Rachael |
| Anjelica Huston | Anjelica Huston as Diane | Jessica Parker Kennedy | Jessica Parker Kennedy as Jackie |
| Andrew Airlie | Andrew Airlie as Dr. Ross | Matt Frewer | Matt Frewer as Mitch |
| Philip Baker Hall | Philip Baker Hall as Alan | Serge Houde | Serge Houde as Richard |
| Veena Sood | Veena Sood as Nurse Stewart | William "Big Sleeps" Stewart | William "Big Sleeps" Stewart as George |