 | Vince Vaughn als David |
 | Cobie Smulders als Emma |
 | Chris Pratt als Brett |
 | Britt Robertson als Kristen |
 | Jack Reynor als Josh |
 | Bobby Moynihan als Aleksy |
 | Andrzej Blumenfeld als Mikolaj |
 | Simon Delaney als Victor |
 | Dave Patten als Adam |
 | Adam Chanler-Berat als Viggo |
 | Amos VanderPoel als Taylor |
 | Matthew Daddario als Channing |
 | Jessica Williams als African American Spa Worker |
 | Leslie Ann Glossner als Young Romantic Girl |
 | Derrick Arthur als Young Boozer |
 | Michael Oberholtzer als Bag Boy |
 | Sébastien René als Ryan |
| Kevin Hopkins als Andrew Johansson |
 | Stephen Ellis als 18th Century Professor |
 | Zachary Hernandez als Brett's Four Year-Old |
 | Erin Gerasimovich als Brett's Six Year-Old |
| Kyle Sutton als Brett's Eight Year-Old |
 | Lynda Gravatt als Judge Logan |
 | Starla Benford als Personal Care Assistant |
 | Damian Young als Attorney Williams |
| Finnerty Steeves als Loan Officer #1 |
 | Don Guillory als Loan Officer #2 |
 | Richard Poe als Loan Officer #3 |
| Jessica Abo als Reporter #1 |
 | Logan Crawford als Reporter #2 |
 | Alice Gainer als Reporter #3 |
 | Darin Guerrasio als Customer #1 |
| Jonah Nathan als Employee |
 | Bruce Altman als Mass Action Attorney |
 | Alexander Flores als Teenage Clerk |
 | Matthew J. Walters als Stroller Salesman |
 | Stephanie Berry als Straightforward Nurse |
 | Joseph Tudisco als Sports Store Owner |
 | Akim Black als Scalper |
 | Kate Dalton als Sabrina |
| Gabe Doran als Patrolman |
 | Glenn Fleshler als Coffee Shop Owner |
 | Matthew Sean Blumm als Male Nurse |
 | Mark Zimmerman als Hospital Doctor |
 | Angela Bellotte als Girl with Short Skirt |
 | Charlie Romanelli als Hardhat |
 | Pasha Pellosie als Boyfriend #1 |
| Connor Fox als Boyfriend #2 |
 | Isaac H.W. Joseph als Boyfriend #3 |
 | Jay Leno als Himself |
 | Bill Maher als Himself |
 | Nancy Nagrant als Victor's Wife |
| Jamie Lynn Weisman als Aleksy's Wife |
| Pantea Karimi als Ultrasound Technician |
 | Chris Hernandez als Biological Son |
| Ken Scott | Screenplay |
| Martin Petit | Original Story |
| André Rouleau | Producer |
| Jon Brion | Original Music Composer |
| Eric Alan Edwards | Director of Photography |
| Priscilla Nedd-Friendly | Editor |
| Jeanne McCarthy | Casting |
| Ray Angelic | Executive Producer |
| Scott Mednick | Executive Producer |
| Mark Sourian | Executive Producer |
| Ida Random | Production Design |
| Mark Newell | Art Direction |
| Sara Parks | Set Decoration |
| Ken Scott | Original Story |
| Ken Scott | Director |
| Joe Bucaro III | Stunt Coordinator |
| Scott Millan | Sound Re-Recording Mixer |
| Greg P. Russell | Sound Re-Recording Mixer |
| Per Hallberg | Supervising Sound Editor |
| Jared Burke | Stunts |
| Mike Burke | Stunts |
| Harry Corrigan | Stunts |
| Nicholas Decegli | Stunts |
| Leigha Hancock | Stunts |
| Chad Hessler | Stunts |
| Don Hewitt Jr. | Stunts |
| Curtis Lyons | Stunts |
| John Patrick McLaughlin | Stunts |
| Dee Morris | Stunts |
| Mick O'Rourke | Stunts |
| Brian Smyj | Stunts |
| Joseph Urban | Stunts |
| Ray Angelic | Unit Production Manager |
| Holly Rymon | Unit Production Manager |
| Doug Torres | First Assistant Director |
| Justin Ritson | Second Assistant Director |
| Holly Bario | Co-Producer |
| Maxime Vanasse | Associate Producer |
| Jeannette Kim | Assistant Art Director |
| John Pollard | Assistant Art Director |
| Sarah E. McMillan | Assistant Set Decoration |
| Rebecca Breckel | Script Supervisor |
| Mark Schmidt | "A" Camera Operator |
| Mark Schmidt | Steadicam Operator |
| Craig Pressgrove | First Assistant "A" Camera |
| Pedro Corcega | Second Assistant "A" Camera |
| Jessica Miglio | Still Photographer |
| Courtney Bridgers | Camera Loader |
| Frankie DeMarco | Second Unit Director of Photography |
| Tom Nelson | Production Sound Mixer |
| Vince Reed Camuto | Boom Operator |
| Dan Wesson | Boom Operator |
| Allison Howe | Utility Sound |
| Daniel Salk | Video Assist Operator |
| Ken Shibata | Gaffer |
| Samuel G. Friedman | Best Boy Electric |
| Gary Martone | Key Grip |
| Charles Carter Bissell | Electrician |
| Stephen Raphael Frank | Electrician |
| Lou Gisone | Electrician |
| Paul Kaye | Electrician |
| Dave Rudolph | Electrician |
| Christopher Weck | Electrician |
| Gary Hildebrand | Shop Electric |
| John Coots | Rigging Gaffer |
| Dana Wisher | Best Boy Grip |
| Daniel Wallenstein | Dolly Grip |
| Keith Gordon | Grip |
| Ron Morales | Grip |
| Ethan Rosenduft | Grip |
| Jeffrey Ruis | Grip |
| Chris Quilles | Grip |
| Pedro Hernández | Key Rigging Grip |
| George Elias | Rigging Grip |
| Michael Jortner | Property Master |
| Kyle Salvatore | Assistant Property Master |
| Drew Jiritano | Special Effects Coordinator |
| Drew Jiritano Jr. | Special Effects Assistant |
| Joseph Mortelliti | Special Effects Assistant |
| Caroline Quiroga | Assistant Costume Designer |
| Susan J. Wright | Costume Supervisor |
| Mei Lai Hippisley Coxe | Key Costumer |
| Kevin P. Faherty | Set Costumer |
| Sarah Moore | Tailor |
| Jill E. Anderson | Costumer |
| Patrick S. O'Donoghue | Costumer |
| Lawrence Tarzy | Costumer |
| Ben Philipp | Costume Assistant |
| Kyra Panchenko | Makeup Department Head |
| Maya Hardinge | Key Makeup Artist |
| Cynthia O'Rourke | Makeup Artist |
| Emily Ansel | Assistant Makeup Artist |
| Stephanie Wise | Assistant Makeup Artist |
| Arielle Toelke | Assistant Makeup Artist |
| Kerrie Smith | Hair Department Head |
| Shellie Biviens | Key Hair Stylist |
| Tony Dixon-Lyon | Hairstylist |
| Mark Schmidt | Hairstylist |
| Jane Nerlinger Evans | Executive In Charge Of Production |
| Shelly Strong | Production Executive |
| Holly Pilch | Production Coordinator |
| Morgan Newell | Assistant Production Coordinator |
| Patrick McDonald | Second Second Assistant Director |
| Daniel D'Amico | Production Secretary |
| Danielle Conquy | Production Assistant |
| Allyson Weeks | Production Assistant |
| Jim Turner | Production Controller |
| Steve Guilbaud | Production Accountant |
| Jamie Horwitz | First Assistant Accountant |
| Abby Coon | Second Assistant Accountant |
| Tanisha Jones | Second Assistant Accountant |
| David Farr | Payroll Accountant |
| Maria DeVane | Post Production Accountant |
| Gayle Vangrofsky | Location Manager |
| Justin Kron | Assistant Location Manager |
| Ana Laura Pulido | Location Coordinator |
| Daniel Bethea | Location Assistant |
| Jordan M. Bowes | Location Assistant |
| Oliver Brooks | Location Assistant |
| Mathew Noack | Location Assistant |
| Rori Bergman | Locale Casting Director |
| Leslie Woo | Casting Associate |
| Grant Wilfley | Extras Casting |
| Melissa Braun | Extras Casting |
| Liz Olanoff | Extras Casting Assistant |
| Howard Samuelsohn | Dialect Coach |
| Amy Cohn | Unit Publicist |
| Kelly Solomon | Art Department Coordinator |
| Reginald Polynice | Graphic Designer |
| Patrick Campbell | Storyboard Artist |
| Tom Conway | Leadman |
| Avery Sorrels | Art Department Assistant |
| Wendy Brown | Set Dresser |
| Brian Buteau | Set Dresser |
| Catriona Crosby | Set Dresser |
| David Scott Gagnon | Set Dresser |
| Craig Horan | Set Dresser |
| Jeffrey Rollins | Set Dresser |
| Roxy Toporowych | Set Dresser |
| Pierre Rovira | Construction Coordinator |
| Michael Kall | Construction Foreman |
| John J. Ciccimarro | Key Carpenter |
| Jose Amor | Carpenter |
| Christopher Rovira | Carpenter |
| Jonathan Karp | Music Editor |
| Judah Getz | ADR Mixer |
| Kyle Rochlin | Foley Mixer |
| Charlie Price | Key Construction Grip |
| Daniel Beaman | Construction Grip |
| Matthew Pangione | Construction Grip |
| Mario Herrera | Charge Scenic Artist |
| Steve Koster | Aerial Director of Photography |
| Jim Buckman | Transportation Captain |
| Chuck Bennis | Transportation Co-Captain |
| Roxanne LaPenta | Actor's Assistant |
| Maria Ryan | Producer's Assistant |
| Erin Rodman | Producer's Assistant |
| Mark Graziano | Executive In Charge Of Post Production |
| Robert Bella | Post Production Supervisor |
| Gregg London | First Assistant Editor |
| Craig Dewey | Assistant Editor |
| Christopher Assells | Sound Effects Editor |
| P.K. Hooker | Sound Effects Editor |
| Philip D. Morrill | First Assistant Sound Editor |
| Christina M. Walker | Post Production Assistant |
| Gunnar McGrew | Post Production Coordinator |
| Gregg London | Visual Effects Editor |
| Will Welles | Editorial Production Assistant |
| Chris Jargo | Supervising ADR Editor |
| Laura Harris Atkinson | Dialogue Editor |
| John C. Stuver | Dialogue Editor |
| Anna MacKenzie | ADR Editor |
| Craig S. Jaeger | Foley Editor |
| Jonathan Klein | Foley Editor |
| Anita Cannella | Foley Artist |
| Amy Kane | Foley Artist |
| Dennis Drummond | Supervising Sound Editor |
| Ann Ducommun | First Assistant Sound Editor |
| Scott A. Jennings | Sound Effects Editor |
| Kim Drummond | Dialogue Editor |
| Eran Dinur | VFX Supervisor |
| Eli Jarra | VFX Supervisor |
| Jonathan Karp | Music Supervisor |
| Dana Sano | Music Supervisor |
| Melissa Toth | Costume Designer |
| James Baker | Boom Operator |
