 | Jennifer Aniston als Kassie Larson |
 | Jason Bateman als Wally Mars |
 | Patrick Wilson als Roland |
 | Thomas Robinson als Sebastian |
 | Jeff Goldblum als Leonard |
 | Juliette Lewis als Debbie |
 | Victor Pagan als Knit Hat Guy |
 | Todd Louiso als Artie |
 | Scott Elrod als Declan |
 | Kelli Barrett als Roland's Wife Jessica |
 | Rebecca Naomi Jones als Party Guest |
 | Jeremy Mohler als Party Guest #2 |
 | Will Swenson als Actor on Stage |
 | Edward James Hyland als Man in Theater |
 | Caroline Dhavernas als Pauline |
| Brian Podnos als Waiter |
| Carmen M. Herlihy als Woman on Bus |
| Lily Pilblad als Girl at Pizzeria |
 | Jason Jones als Climbing Wall Guide |
 | Bryce Robinson als Older Sebastian |
 | Brooke Hoover als Pig Nose Woman (uncredited) |
 | Stephanie Domini als Kassie's friend (uncredited) |
 | Amanda Barron als Roland's Sister (uncredited) |
| Allan Loeb | Screenplay |
| Josh Gordon | Director |
| Will Speck | Director |
| Jennifer Aniston | Executive Producer |
| Larry M. Gruber | Art Direction |
| Steven Pearl | Co-Producer |
| Allan Loeb | Co-Producer |
| Mary Lee | Co-Producer |
| Kristin Hahn | Executive Producer |
| Nathan Kahane | Executive Producer |
| Ron Yerxa | Producer |
| Brian Bell | Co-Producer |
| Albert Berger | Producer |
| Kelli Konop | Co-Producer |
| Carol Silverman | Set Decoration |
| Jess Hall | Director of Photography |
| John Axelrad | Editor |
| Alex Wurman | Original Music Composer |
| Sherri Berman Laurence | Makeup Department Head |
| Brian Bell | Unit Production Manager |
| Timothy Bird | First Assistant Director |
| Jennifer Truelove | Second Assistant Director |
| Douglas Crosby | Stunt Coordinator |
| Jared Burke | Stunt Coordinator |
| David Januzzi | Stunts |
| Chris Cenatiempo | Stunts |
| Isabella Cenatiempo | Stunts |
| Chase Millea | Stunts |
| Jon Trosky | Stunts |
| Sophia Cenatiempo | Stunts |
| Curtis Lyons | Stunts |
| Blaise Corrigan | Stunts |
| Keith Young | Choreographer |
| David Price | Production Supervisor |
| Jack Schuster | Post Production Supervisor |
| Nancy Kirhoffer | Post Production Supervisor |
| Craig Haagensen | Steadicam Operator |
| Frank Rinato | First Assistant "A" Camera |
| David Flanigan | Second Assistant "A" Camera |
| David M. Dunlap | "B" Camera Operator |
| Kathleen Corgan | First Assistant "B" Camera |
| Scott Lipkowitz | Second Assistant "B" Camera |
| Kevin Walter | Camera Loader |
| Jessica Lichtner | Script Supervisor |
| Thomas Varga | Production Sound Mixer |
| Sam Perry | Boom Operator |
| Adam Sanchez | Utility Sound |
| Susana Gilboe | Assistant Costume Designer |
| Winsome G. McKoy | Wardrobe Supervisor |
| Careen Fowles | Key Costumer |
| Trenee Clayton | Set Costumer |
| Annie Laoparadonchai | Costumer |
| Chris Mahnken | Costume Coordinator |
| Jorjee Douglass | Makeup Artist |
| Amy Duskin | Key Makeup Artist |
| Jerry DeCarlo | Hair Department Head |
| Lona Vigi | Hairstylist |
| Jacqueline Payne | Key Hair Stylist |
| Louie Zakarian | Special Effects Makeup Artist |
| Tom Cross | Additional Editor |
| Andrew Buckland | Additional Editor |
| Sean Valla | First Assistant Editor |
| Ryan Malanaphy | Assistant Editor |
| Scott H. Ramsey | Chief Lighting Technician |
| Michael 'Flash' McDonald | Best Boy Electric |
| Steven Edick | Generator Operator |
| Clay Liversidge | Rigging Gaffer |
| Richard Guinness Jr. | Key Grip |
| Wesley Battle | Best Boy Grip |
| Jasper L. Johnson III | Dolly Grip |
| Brent Poleski | Key Rigging Grip |
| Duke Scoppa | Property Master |
| Pete Dancy | Assistant Property Master |
| Drew Jiritano | Special Effects Coordinator |
| Jon Dowdy | Special Effects Technician |
| Andrew Mortelliti | Special Effects Technician |
| Drew Jiritano Jr. | Special Effects Technician |
| Meghan K. Wicker | Production Coordinator |
| Ryan McDonald | Assistant Production Coordinator |
| Jesse Lasky | Script Coordinator |
| Quincy Gow | Production Secretary |
| Ken Furer | Producer's Assistant |
| Brian McKinley | Producer's Assistant |
| Brian Segna | Executive Producer's Assistant |
| Michelle Johnson | Executive Producer's Assistant |
| Carolyn McGuinness | Executive Producer's Assistant |
| Margaret Maloney | Executive Producer's Assistant |
| Angelica Reynoso | Actor's Assistant |
| Alexis Auditore | Producer's Assistant |
| Diane Sawyer | Thanks |
| Daniel Battsek | Thanks |
| Michael Bloomberg | Thanks |
| Laurie Gershon | Clearances Coordinator |
| Steven Baker | Music Supervisor |
| Douglas Aibel | Casting |
| Kasia Walicka Maimone | Costume Designer |
| Jeffrey Eugenides | Short Story |
| Dylan Correll | Editorial Production Assistant |
| Adam Stockhausen | Production Design |
