 | Justin Timberlake als Dylan Harper |
 | Mila Kunis als Jamie Rellis |
 | Jenna Elfman als Annie Harper |
 | Patricia Clarkson als Lorna |
 | Woody Harrelson als Tommy Bollinger |
 | Richard Jenkins als Mr. Harper |
 | Bryan Greenberg als Parker |
 | Andy Samberg als Quincy |
 | Nolan Gould als Sammy - Sam the Magnificent |
 | Shaun White als Himself |
 | Andrew Fleming als Driver |
 | Catherine Reitman als Female Co-Worker |
 | Courtney Henggeler als Flight Attendant |
 | Masi Oka als Darin Arturo Morena |
 | Tiya Sircar als Hostess |
 | Christopher T. Wood als Ira Ungerleider |
 | Emma Stone als Kayla |
 | Lili Mirojnick als Laura |
 | Rupak Ginn als Male Co-Worker (L.A.) |
 | Duane R. Shepard Sr. als Older Man |
 | Chike Johnson als Taxi Driver |
 | Angelique Cabral als Pam Niborski |
 | Lance Kerfuffle als Security Guard |
 | Jerry Ying als Photographer |
 | Jerry Hyman als Caricaturist |
| Nick Lee als Dylan's Neighbor |
| Jason Sung Lee als Dylan's Friend |
 | Michael Morris als Carriage Driver |
 | Brooklyn McLinn als Policeman |
| Timothy Bish als Dancer |
| LaJon Dantzler als Dancer |
| Angel Feliciano als Dancer |
| Laura Fremont als Dancer |
 | Nicole Guidetti als Dancer |
| Alicia Mazepa als Dancer |
 | Mayumi Miguel als Dancer |
 | Jermaine Montell als Dancer |
 | Joanna Numata als Dancer |
| Danielle Polanco als Dancer |
| Wes Pope als Dancer |
| Steven Rosa als Dancer |
 | Seth Stewart als Dancer |
| DeAnna Walters als Dancer |
| Adam Zotovich als Dancer |
| Alexandra Gluck als Unaccompanied Minor #1 |
 | Taryn Gluck als Unaccompanied Minor #2 |
| Kandé Amadou als Dancer (Flashmob) (uncredited) |
 | Christopher Baskerville als Airport Traveler (uncredited) |
| Barry Bradford als Basketball Player (uncredited) |
 | Jennifer Brito als FlashMob (uncredited) |
| William Patrick Brown als Passenger (uncredited) |
| Jorga Caye als Tour Guide (uncredited) |
| Tammy Dugen als DeeDee (uncredited) |
| Teresa Hui als Dancer (uncredited) |
 | Rashida Jones als Maddison (uncredited) |
| Paul Marra als Tommy's Package Guy (uncredited) |
 | Andrea-Rachel Parker als Flashmob Dancer (uncredited) |
 | Evelina Pereira als Belgian Girl (uncredited) |
 | Alex Phillip als Classmate / Reception Guest (uncredited) |
| Shane Schoeppner als Airport Diner (uncredited) |
 | Jason Segel als Brice (uncredited) |
 | Uzimann als Hallal Food Vendor (uncredited) |
| Barbara Vincent als Flash Mob (Grand Central) (uncredited) |
| James Wallington als Photographer's Assistant (uncredited) |
| Ryan Dodson als Airport Passenger (uncredited) |
| Keith Merryman | Screenplay |
| David A. Newman | Screenplay |
| Will Gluck | Screenplay |
| Will Gluck | Director |
| Harley Peyton | Story |
| Tia Nolan | Editor |
| Lisa Miller Katz | Casting |
| Marcia Hinds | Production Design |
| Bo Johnson | Art Direction |
| Michael Grady | Director of Photography |
| Troy Gilbert | Stunts |
| Lance Gilbert | Stunt Coordinator |
| Jimmy N. Roberts | Stunt Driver |
| Clay Cullen | Stunts |
| Erik Rondell | Stunts |
| Renee Ehrlich Kalfus | Costume Design |
| Glenn S. Gainor | Executive Producer |
| Jerry Zucker | Producer |
| Janet Zucker | Producer |
| Will Gluck | Producer |
| Martin Shafer | Producer |
| Liz Glotzer | Producer |
| Chad Randall | Stunts |
| Adruitha Lee | Hair Department Head |
| Michelle Vittone | Makeup Department Head |
| Tracy Manzo | Key Makeup Artist |
| Carla White | Key Makeup Artist |
| Lynda Kyle Walker | Key Hair Stylist |
| Anthony J. Nahar | Second Assistant Director |
| Todd Amateau | First Assistant Director |
| Alyssa Winter | Set Decoration |
| Cindy Coburn | Set Decoration |
| Jeffrey A. Wischnack | Special Effects Coordinator |
| Ralph Maiers | Visual Effects Supervisor |
| Rocco Passionino | Visual Effects Supervisor |
| Raoul Bolognini | Visual Effects Producer |
| Thomas Tannenberger | Visual Effects Supervisor |
| Jared Burke | Stunt Double |
| Brandon Cornell | Utility Stunts |
| Marc C. Geschwind | Stunt Driver |
| Mark Dobson | Stunts |
| Chuck 'Chaz' Hosack | Stunts |
| James M. Halty | Stunts |
| Brady Romberg | Stunt Double |
| Larry Rippenkroeger | Stunts |
| Mike Smith | Stunts |
| Matthew R. Staley | Stunts |
| Monty L. Simons | Stunts |
| Eddie L. Watkins | Stunt Coordinator |
| Glen Yrigoyen | Stunts |
| Mike Karasick | Chief Lighting Technician |
| Brian Heller | Aerial Director of Photography |
| Mark Meyers | Steadicam Operator |
| Darin Moran | "A" Camera Operator |
| David B. Nowell | Aerial Director of Photography |
| Bill O'Leary | Chief Lighting Technician |
| Glen Wilson | Still Photographer |
| Kyle Rudolph | Steadicam Operator |
| Wende Crowley | Music Supervisor |
| Crystal Aguilar | Stand In |
| Ashley Wallen | Choreographer |
| Laura Love Tode | Stand In |
| Tateum Kohut | Sound Re-Recording Mixer |
| Greg Orloff | Sound Re-Recording Mixer |
| Jon Wakeham | Supervising Sound Editor |
| Geoffrey Patterson | Production Sound Mixer |
| Keith Merryman | Story |
| David A. Newman | Story |
| Nicolas Stern | Co-Producer |
| Alicia Emmrich | Co-Producer |
| Mark Muñoz | Stunts |
| Glenn S. Gainor | Unit Production Manager |
| Meredith Meade | Production Supervisor |
| Tommy Tomlinson | Property Master |
| Jody Blose | Script Supervisor |
| Brian Morena | First Assistant "A" Camera |
| Arturo Rojas | Second Assistant "A" Camera |
| Mark Meyers | "B" Camera Operator |
| Mary F. Stankiewicz | First Assistant "B" Camera |
| Jeff Griffith | Second Assistant "B" Camera |
| Edward Viola | Digital Imaging Technician |
| Hope Slepak | Costume Supervisor |
| Roberta Bilé | Key Costumer |
| Linda S. Cormany | Key Costumer |
| Yulia Gershenzon | Costumer |
| Annie Laoparadonchai | Costumer |
| Tracey Levy | Makeup Artist |
| David Waterman | Makeup Artist |
| Jason Green | Hairstylist |
| John Linares | Assistant Chief Lighting Technician |
| J. A. Byerly | Rigging Gaffer |
| John Bratlien | Rigging Grip |
| Jason Andrew | Key Grip |
| David C. Wright | Best Boy Grip |
| Kenny Davis | Dolly Grip |
| T.S. Hale | Dolly Grip |
| Chad Herr | Rigging Grip |
| Kyle Drevlo | Rigging Grip |
| Benjamin Wienert | Boom Operator |
| Tommy Frazier | Special Effects Supervisor |
| Douglas Dresser | Location Manager |
| S. Dylan Kirkland | Assistant Location Manager |
| Peter Gluck | Assistant Location Manager |
| Kandice Billingsley | Assistant Location Manager |
| Sue Smith | Production Coordinator |
| Lauren Brooke Kurfirst | Assistant Production Coordinator |
| Jordan Gilbert | Production Secretary |
| Chris Romberg | Production Accountant |
| Nicholas Brown | First Assistant Accountant |
| Karen Higgins | Construction Coordinator |
| Steven Kissick | Construction Foreman |
| John B. Josselyn | Assistant Art Director |
| Al Lewis | Assistant Art Director |
| Paris Pickard | Art Department Coordinator |
| James E. Tocci | Set Designer |
| Rebecca Rosenthal | Assistant Property Master |
| Steve Seine | Leadman |
| Marcus Epps | Set Dresser |
| Heather Kritzer | Second Second Assistant Director |
| Joseph Wisniewski | Casting Associate |
| Dan Brizendine | Transportation Captain |
| Jayson Ehlers | Transportation Co-Captain |
| Montez A. Monroe | Production Supervisor |
| Stephen H. Carter | Art Direction |
| Peter Gelfman | Property Master |
| Edwin Effrein | First Assistant "A" Camera |
| Greg Finkel | Second Assistant "A" Camera |
| Marc Hillygus | First Assistant "B" Camera |
| Alexis Le | Second Assistant "B" Camera |
| Kyle Rudolph | "B" Camera Operator |
| Bill Coleman | "C" Camera Operator |
| Jeffrey Dutemple | First Assistant "C" Camera |
| Angela Bellisio | Second Assistant "C" Camera |
| Elizabeth Shelton | Assistant Costume Designer |
| Joanna Brett | Costume Supervisor |
| Winsome G. McKoy | Costumer |
| Careen Fowles | Costumer |
| Linda Giammarese | Costumer |
| Barrett Hong | Costumer |
| Ralph Stanzione | Key Hair Stylist |
| William O'Leary | Chief Lighting Technician |
| Joseph Grimaldi | Assistant Chief Lighting Technician |
| Richie Ford | Rigging Gaffer |
| Louis Petraglia | Rigging Grip |
| Mitchell Andrew Lillian | Key Grip |
| Paul Candrilli | Best Boy Grip |
| James Boniece | Rigging Grip |
| Michael A. McFadden | Rigging Grip |
| Joe White | Production Sound Mixer |
| Schavaria Reeves | Boom Operator |
| Tina Khayat | Art Department Coordinator |
| Natalie N. Dorset | Assistant Property Master |
| James V. Kent | Assistant Property Master |
| Bryan Walsh | Leadman |
| Ruth DeLeon | Set Dresser |
| Gayle Vangrofsky | Location Manager |
| Justin Kron | Assistant Location Manager |
| Sarah D. Connolly | Production Coordinator |
| Canella Williams | Assistant Production Coordinator |
| Gillian M. Berrow | Production Secretary |
| David Giesbrecht | Still Photographer |
| Matt Power | Second Second Assistant Director |
| Jennifer Euston | Casting |
| Emer O'Callaghan | Casting Assistant |
| William Gaskins | Transportation Captain |
| James Keegan | Transportation Co-Captain |
| Stacey S. Clipp | First Assistant Editor |
| Kristine McPherson | Assistant Editor |
| Matt Temple | Sound Effects Editor |
| Eryne Prine | Assistant Sound Editor |
| David Williams | Dialogue Editor |
| Robert Ulrich | Supervising ADR Editor |
| Anthony J. Ciccolini III | ADR Editor |
| Sarah Monat | Foley Artist |
| Robin Harlan | Foley Artist |
| Randy Singer | Foley Mixer |
| Brian Smith | ADR Mixer |
| Sherry Whitfield | Music Editor |
| John Persichetti | Digital Colorist |
| Chris Roff | Additional Visual Effects |
| Joey Bonander | Visual Effects Coordinator |
| Olcun Tan | Executive Visual Effects Producer |
| Travis Baumann | Compositing Lead |
| Prasanna Siddharthan | Compositing Artist |
| Bernardo Rodriguez | VFX Editor |
| Philip Broste | Compositing Artist |
| Rob Price | Compositing Artist |
| Darren MacKay | Compositing Artist |
| Amy Edwards | Compositing Artist |
| Jon Anastasiades | Compositing Artist |
| Harrison Rutherford | Compositing Artist |
