 | Ben Stiller als Tugg Speedman |
 | Jack Black als Jeff Portnoy |
 | Robert Downey Jr. als Kirk Lazarus |
 | Jay Baruchel als Kevin Sandusky |
 | Brandon T. Jackson als Alpa Chino |
 | Brandon Soo Hoo als Tran |
 | Tom Cruise als Les Grossmann |
 | Nick Nolte als Four Leaf Tayback |
 | Danny McBride als Cody |
 | Matthew McConaughey als Rick Peck |
 | Steve Coogan als Damien Cockburn |
 | Bill Hader als Rob Slolom |
 | Reggie Lee als Byong |
 | Trieu Tran als Tru |
 | Tobey Maguire als Tobey Maguire |
 | Tyra Banks als Tyra Banks |
 | Jon Voight als Jon Voight |
 | Jennifer Love Hewitt als Jennifer Love Hewitt |
 | Alicia Silverstone als Alicia Silverstone |
 | Jason Bateman als Jason Bateman |
 | Christine Taylor als Rebecca - Simple Jack Clip |
 | Jeff Kahn als Snooty Waiter - Fatties Trailer |
 | Anthony Ruivivar als Platoon Sergeant Shot in Head - Hot LZ |
 | Eric Winzenried als Chopper Pilot - Hot LZ |
 | Valerie Azlynn als Damien's Assistant - Vietnam Crew |
 | Matt Levin als Cameraperson - Vietnam Crew |
 | David Pressman als First Assistant Director - Vietnam Crew |
 | Amy Stiller als Script Supervisor - Vietnam Crew |
 | Dempsey Silva als Special Effects Assistant - Vietnam Crew |
| Jeff Weidemann als Speedman Assistant - Vietnam Crew |
 | Nadine Ellis als Speedman Assistant - Vietnam Crew |
 | Rachel Avery als Speedman Assistant - Vietnam Crew |
| Darryl Farmer als Alpa's Posse - Vietnam Crew |
| Rod Tate als Alpa's Posse - Vietnam Crew |
 | Maria Menounos als Maria Menounos |
| Jel Galiza als Speedman's Chef - Speedman's Mansion |
| Andrea De Oliveira als Speedman's Trainer - Speedman's Mansion |
 | Yvette Nicole Brown als Peck's Assistant - Peck's Office |
| J. Thomas Chon als Half Squat - Flaming Dragon Compound |
| Jacob Chon als Half Squat - Flaming Dragon Compound |
 | Mini Anden als Grossman's Secretary - Grossman's Office |
| Mike Hoagland als Grossman's Assistant - Grossman's Office |
 | Lance Bass als Himself - Awards Ceremony |
| Linda Bella als Jon Voight's Date (uncredited) |
 | Denise Bradley als Academy Awards Guest (uncredited) |
 | Ella Christopher als Stewardess (uncredited) |
 | Natalie Cohen als Stewardess (uncredited) |
| Larry Cruz als Gorilla Soldier (uncredited) |
 | Angela Daun als Starlet (uncredited) |
| Clark DeVol als Sack Race Boy (uncredited) |
| Kaylee Dodson als Sack Race Girl (uncredited) |
| Jasmine Dustin als Trophy Presenter (uncredited) |
| David D. Espinoza als Audience Member (uncredited) |
| Eric Feliciano als Academy Awards Audience Member (uncredited) |
 | Miko Hughes als Radio DJ (uncredited) |
| Dave Johnson als Journalist (uncredited) |
 | Jillian Johnston als Four Leaf's Date (uncredited) |
 | James Lew als Flaming Dragon Compound Person (uncredited) |
| Lesley Nicole Lewis als Booty Sweat Dancer (uncredited) |
 | Fadhia Carmelle Marcelin als Academy Awards Attendee (uncredited) |
 | Anya Monzikova als Trophy Presenter (uncredited) |
 | Chad Mountain als Agency Assistant (uncredited) |
 | Brittany Perry-Russell als Booty Sweat Girl (uncredited) |
 | Simon Rhee als Flaming Dragon Compound Person (uncredited) |
 | Samantha Sadoff als Farm Girl (uncredited) |
 | Gaku Space als Guerilla Guard (uncredited) |
 | Becca Sweitzer als Go Go Dancer (uncredited) |
 | Kaye Marie Talise als Academy Awards Attendee (uncredited) |
| Sandra Valladares als Red Carpet Reporter (uncredited) |
| Julie Van als Academy Awards Attendee (uncredited) |
 | Jobeth Wagner als Academy Awards Attendee (uncredited) |
| John Garry als Trailer Announcer - The Fatties (voice) (uncredited) |
 | Justin Theroux als UH-1 Huey Gunner (uncredited) |
| Eric McLeod | Producer |
| Doug Jackson | Dialogue Editor |
| Justin Theroux | Screenplay |
| Justin Theroux | Executive Producer |
| Justin Theroux | Story |
| Francine Maisler | Casting |
| John Toll | Director of Photography |
| Marlene Stewart | Costume Design |
| John Warnke | Set Designer |
| Jeff Mann | Production Design |
| Theodore Shapiro | Original Music Composer |
| Ben Stiller | Screenplay |
| Ben Stiller | Director |
| Ben Stiller | Producer |
| Ben Stiller | Story |
| Kathy Driscoll | Casting |
| Richard L. Johnson | Art Direction |
| Dan Webster | Art Direction |
| Greg Hayden | Editor |
| Ron Bartlett | Sound Re-Recording Mixer |
| Stuart Cornfeld | Producer |
| Heather Plott | Makeup Artist |
| Daniel B. Clancy | Set Decoration |
| Etan Cohen | Screenplay |
| Matt Eppedio | Associate Producer |
| Lisa Tomczeszyn | Assistant Costume Designer |
| E. J. Foerster | Second Unit Director |
| Warren Hendriks | Sound Effects Editor |
| Derek Vanderhorst | Sound Effects Editor |
| Patrick Esposito | Post Production Supervisor |
| Patrick Esposito | Visual Effects Producer |
| Marco Rubeo | Assistant Art Director |
| Steve Adcock | "C" Camera Operator |
| Paula Fairfield | Sound Effects Editor |
| Rick Canelli | ADR Recordist |
| Brad Martin | Stunt Coordinator |
| Scott Stambler | Music Editor |
| Jeff Imada | Stunts |
| Zack Duhame | Stunts |
| Kyle Cooper | Title Designer |
| Byron Wong | First Assistant Editor |
| Brian Taylor | Producer |
| David E. Scott | Assistant Art Director |
| Harry E. Otto | Assistant Art Director |
| Bill M. Puluti | Transportation Coordinator |
| Jason Tuttle | Assistant Sound Editor |
| Steve Baine | Foley Artist |
| Maria Baker | Set Designer |
| John Chichester | Set Designer |
| Julie Smith | Leadman |
| Dottie Starling | Visual Effects |
| Mathieu Reid | Color Timer |
| Daryl B. Kell | Supervising Music Editor |
| Craig Henighan | Supervising Sound Editor |
| Craig Henighan | Sound Re-Recording Mixer |
| Steve D. Weinmuller | Transportation Co-Captain |
| Mark Indig | Unit Production Manager |
| Michael J. Burmeister | Location Manager |
| Merie Weismiller Wallace | Still Photographer |
| Doug Hemphill | Sound Re-Recording Mixer |
| Phil Neilson | Second Unit Director |
| Steven Melton | Property Master |
| Leeann Stonebreaker | Production Supervisor |
| Jonas Kirk | Construction Coordinator |
| Martha Johnston | Assistant Art Director |
| Laura Gary | Studio Teacher |
| Jim Brookshire | Supervising Sound Editor |
| Benjamin Beardwood | Dialogue Editor |
| Scott Allen Logan | Location Manager |
| Michael A. Chavez | "C" Camera Operator |
| Michael L. Fink | Visual Effects Supervisor |
| Meghan L. Noble | Visual Effects Editor |
| Alex L. Worman | Unit Publicist |
| Stephanie Lowry | Music Editor |
| Mike Thomas | Camera Operator |
| Heather Elwell | Art Department Coordinator |
| Jack Blanchard | Set Dresser |
| Daniel C. Gold | Camera Operator |
| Kerry Mendenhall | Hairstylist |
| David M. Milstien | Set Dresser |
| Michael J. Hogan | Video Assist Operator |
| Kim Berner | Script Supervisor |
| Gerald Quist | Makeup Department Head |
| Gerald Quist | Special Effects Makeup Artist |
| Jeff Ozimek | Set Designer |
| Vanessa Lapato | Dialogue Editor |
| Brooks Robinson | Steadicam Operator |
| Brooks Robinson | "B" Camera Operator |
| Lauren Grey | Casting Associate |
| Mark Weissenfluh | Leadman |
| Dieter Busch | Second Assistant Director |
| Brandon Sebek | Utility Stunts |
| Beth Miller | Hair Department Head |
| Brian Bulman | Music Editor |
| Ron Licari | Armorer |
| Lance Larson | Assistant Property Master |
| Patrick McArdle | First Assistant "B" Camera |
| Steve Cantamessa | Sound Mixer |
| Mark Cotone | First Assistant Director |
| Marguerite Pomerhn Derricks | Choreographer |
| Curtis Croeni | First Assistant Editor |
| Randy Woodside | Chief Lighting Technician |
| Leslie Devlin | Makeup Artist |
| Gail Martin-Sheridan | Production Accountant |
| John Reed | Transportation Captain |
| Gary Burritt | Negative Cutter |
| Peter Persaud | Foley Recordist |
| Elizabeth Chodar | Casting Assistant |
| Eve Light Honthaner | Production Coordinator |
| Torry Tukuafu | Second Assistant "C" Camera |
| Greg Mitchell | Video Assist Operator |
| Thomas J. O'Connell | ADR Mixer |
| Scott G. Jones | Leadman |
| Mark Green | Set Dresser |
| Eric Amundsen | Second Assistant "B" Camera |
| Steven Trapani | Assistant Editor |
| Jeff Pelton | Second Assistant "A" Camera |
| Chris Toll | First Assistant "A" Camera |
| Lori Ikeda | Payroll Accountant |
| Scott Ronnow | Second Assistant "C" Camera |
| Anthony Klaiman | Set Dresser |
| Tony Nagy | First Assistant "C" Camera |
| Brian Matsumura | Camera Loader |
| Adam Kirby | Set Dresser |
| Geoffrey Roiz | Assistant Costume Designer |
| Michael Kaahanni Jr. | Set Dresser |
| Michael Kaahanui III | Set Dresser |
| Ken Catando | Transportation Captain |
| Antonio Molina | Transportation Co-Captain |
| Christine Rivera | In Memory Of |
