The Hangover crew heads to Thailand for Stu's wedding. After the disaster of a bachelor party in Las Vegas last year, Stu is playing it safe with a mellow pre-wedding brunch. However, nothing goes as planned and Bangkok is the perfect setting for another adventure with the rowdy group.
| Directing | Todd Phillips | Director |
| Writing | Craig Mazin | Screenplay |
| Writing | Scot Armstrong | Screenplay |
| Editing | Debra Neil-Fisher | Editor |
| Camera | Lawrence Sher | Director of Photography |
| Editing | Michael L. Sale | Editor |
| Production | Daniel Goldberg | Producer |
| Crew | Keii Johnston | Stunts |
| Production | Thomas Tull | Executive Producer |
| Art | Russell Bobbitt | Property Master |
| Sound | Christophe Beck | Original Music Composer |
| Production | Justine Arteta | Casting |
| Production | Kim Davis-Wagner | Casting |
| Costume & Make-Up | Louise Mingenbach | Costume Design |
| Sound | Randall Poster | Music Supervisor |
| Sound | George Drakoulias | Music Supervisor |
| Production | David Siegel | Co-Producer |
| Production | Jeffrey Wetzel | Co-Producer |
| Art | Bill Brzeski | Production Design |
| Writing | Jon Lucas | Characters |
| Writing | Scott Moore | Characters |
| Production | Chris Bender | Executive Producer |
| Production | J.C. Spink | Executive Producer |
| Production | Scott Budnick | Executive Producer |
| Production | Todd Phillips | Producer |
| Writing | Todd Phillips | Screenplay |
| Production | David Siegel | Unit Production Manager |
| Directing | Jeffrey Wetzel | First Assistant Director |
| Directing | Paul Schneider | Second Assistant Director |
| Directing | Brian Smrz | Second Unit Director |
| Production | Chris Lowenstein | Line Producer |
| Visual Effects | Robert Stadd | Visual Effects Supervisor |
| Sound | Cameron Frankley | Sound Designer |
| Sound | Cameron Frankley | Sound Supervisor |
| Crew | Allan Graf | Stunt Coordinator |
| Crew | Seng Kawee | Stunt Coordinator |
| Art | Desma Murphy | Art Direction |
| Art | Philip Toolin | Art Direction |
| Art | Danielle Berman | Set Decoration |
| Camera | Peter McCaffrey | "A" Camera Operator |
| Camera | Julie Donovan | First Assistant "A" Camera |
| Camera | Tulio Duenas | Second Assistant "A" Camera |
| Camera | Paul Sanchez | "B" Camera Operator |
| Camera | Gregory Irwin | First Assistant "B" Camera |
| Camera | Bill Coe | First Assistant "B" Camera |
| Camera | Bobby McMahan | Second Assistant "B" Camera |
| Camera | Suzanne Dietz | Camera Loader |
| Camera | Melinda Sue Gordon | Still Photographer |
| Sound | Petur Hliddal | Sound Mixer |
| Sound | Carl Fischer | Boom Operator |
| Crew | Lisa Dennis | Post Production Supervisor |
| Editing | David S. Clark | Additional Editor |
| Sound | Ron Bartlett | Sound Re-Recording Mixer |
| Sound | Gregg Landaker | Sound Re-Recording Mixer |
| Sound | Jon Michaels | First Assistant Sound Editor |
| Sound | Jason W. Jennings | Sound Designer |
| Sound | Lee Gilmore | Sound Effects Editor |
| Sound | David V. Butler | Supervising Dialogue Editor |
| Sound | Russell Farmarco | Dialogue Editor |
| Sound | David A. Arnold | Dialogue Editor |
| Sound | Thomas Whiting | Supervising ADR Editor |
| Sound | Dana LeBlanc Frankley | Assistant Sound Editor |
| Sound | Thomas J. O'Connell | ADR Mixer |
| Sound | Eric Gotthelf | ADR Mixer |
| Sound | Doc Kane | ADR Mixer |
| Sound | David Jobe | Foley Mixer |
| Sound | David Lee Fein | Foley Artist |
| Sound | Hilda Hodges | Foley Artist |
| Sound | Jason Ruder | Supervising Music Editor |
| Sound | Fernand Bos | Supervising Music Editor |
| Sound | David Metzner | Music Editor |
| Visual Effects | David Feinsilber | Visual Effects Coordinator |
| Production | Jennifer Corey | Production Supervisor |
| Directing | Stephen W. Moore | Second Second Assistant Director |
| Production | Patrick Mignano | Location Manager |
| Directing | Jeanne Byrd | Script Supervisor |
| Costume & Make-Up | Robin McMullan | Costume Supervisor |
| Costume & Make-Up | Alison McCosh | Assistant Costume Designer |
| Costume & Make-Up | Tiffany Busche | Key Costumer |
| Costume & Make-Up | Steve Constancio | Set Costumer |
| Costume & Make-Up | Eric Yake | Set Costumer |
| Costume & Make-Up | Bob Moore Jr. | Set Costumer |
| Costume & Make-Up | Tina Dowd | Costumer |
| Costume & Make-Up | Lynne Duggins Weir | Costumer |
| Costume & Make-Up | Jason Rainey | Costumer |
| Costume & Make-Up | Matt Reitsma | Costumer |
| Costume & Make-Up | Janeen Schreyer | Makeup Department Head |
| Costume & Make-Up | Clare Gniadek | Hair Department Head |
| Costume & Make-Up | Jennifer Bell | Hair Department Head |
| Lighting | Jarred Waldron | Chief Lighting Technician |
| Lighting | David Ghegan | Assistant Chief Lighting Technician |
| Lighting | Hootly Weedn | Lighting Technician |
| Lighting | Glenn E. Moran | Rigging Gaffer |
| Camera | Sean Patrick Crowell | Key Grip |
| Camera | John Koth | Best Boy Grip |
| Camera | Tim Christie | Dolly Grip |
| Lighting | Josh Stancil | Key Rigging Grip |
| Art | Max E. Brehme | Property Master |
| Visual Effects | Yves De Bono | Special Effects Supervisor |
| Production | Joseph Garner | Associate Producer |
| Camera | Christopher Duskin | Second Unit Director of Photography |
| Camera | Hans Bjerno | Aerial Director of Photography |
| Visual Effects | Dan Levitan | Visual Effects Supervisor |
| Visual Effects | Michael T. Kennedy | Visual Effects Supervisor |
| Production | Weston Middleton | Production Assistant |
| Crew | Jimmy N. Roberts | Stunts |
