 | Josh Duhamel als Nick Beamon |
 | Kristen Bell als Beth Harper |
 | Anjelica Huston als Celeste |
 | Will Arnett als Antonio |
 | Jon Heder als Lance |
 | Dax Shepard als Gale |
 | Alexis Dziena als Joan |
 | Kate Micucci als Stacy |
 | Bobby Moynihan als Puck |
 | Peggy Lipton als Priscilla |
 | Keir O'Donnell als Priest (Father Dino) |
 | Lee Pace als Brady Sacks |
 | Kristen Schaal als Ilona |
 | Shaquille O'Neal als Himself |
 | Danny DeVito als Al |
 | Luca Calvani als Umberto |
 | Judith Malina als Umberto's Grandma |
 | Natalie Joy Johnson als Secretary |
 | Peter Donald Badalamenti II als Mini Ace Frehley (uncredited) |
 | Don Johnson als Beth's Dad |
 | Efren Ramirez als Juan (uncredited) |
 | Liz Olin als Guggenheim Party Girl #1 |
 | Jessica Howell als Guggenheim Party Girl #2 |
| John Bailey | Director of Photography |
| Andrew Marcus | Editor |
| Stefano Maria Ortolani | Art Direction |
| Eugenio Ulissi | Art Direction |
| Christopher Young | Original Music Composer |
| Gary Foster | Producer |
| Kirk M. Petruccelli | Production Design |
| Mark Steven Johnson | Director |
| Mark Steven Johnson | Producer |
| John Kasarda | Art Direction |
| Ezra Swerdlow | Producer |
| Ezra Swerdlow | Executive Producer |
| Garrett Grant | Executive Producer |
| Francesca Paris | Hair Department Head |
| Sarah Edwards | Costume Design |
| Kathleen Chopin | Casting |
| David Diamond | Writer |
| David Weissman | Writer |
| Andrew Panay | Producer |
| Rosine 'Ace' Hatem | Stunt Double |
| Ryan Folsey | Editor |
| Rikki Lea Bestall | Producer |
| Diane Lederman | Set Decoration |
| Sandra Linn Koepper | Key Makeup Artist |
| Cassandra Saulter | Makeup Artist |
| Jane Choi | Makeup Artist |
| Lori Hicks | Makeup Department Head |
| Sarit Klein | Makeup Artist |
| Susan Schectar | Hairstylist |
| Stacey Panepinto | Makeup Artist |
| Michael Kriston | Hairstylist |
| Rosa Luciani | Hairstylist |
| Caroline Vexler | Stunts |
| Gino Tamagnini | Key Makeup Artist |
| Paula Kelly | Makeup Artist |
| Deb Dyer | Production Supervisor |
| Kimberly Shannon Murphy | Stunts |
| Tina Mckissick | Stunt Double |
| Steven Roffer | Executive Producer |
| Mindy Farrell | Executive Producer |
| John James | Key Hair Stylist |
