Ben Stiller

Character: Tugg Speedman

Robert Downey Jr.

Character: Kirk Lazarus

Jack Black

Character: Jeff Portnoy

Jay Baruchel

Character: Kevin Sandusky

Brandon T. Jackson

Character: Alpa Chino

Brandon Soo Hoo

Character: Tran

Matthew McConaughey

Character: Rick Peck

Tom Cruise

Character: Les Grossman

Nick Nolte

Character: Four Leaf Tayback

Danny McBride

Character: Cody

Steve Coogan

Character: Damien Cockburn

Bill Hader

Character: Rob Slolom

Reggie Lee

Character: Byong

Trieu Tran

Character: Tru

Tobey Maguire

Character: Tobey Maguire

Tyra Banks

Character: Tyra Banks

Jon Voight

Character: Jon Voight

Jennifer Love Hewitt

Character: Jennifer Love Hewitt

Alicia Silverstone

Character: Alicia Silverstone

Jason Bateman

Character: Jason Bateman

Christine Taylor

Character: Rebecca - Simple Jack Clip

Jeff Kahn

Character: Snooty Waiter - Fatties Trailer

Anthony Ruivivar

Character: Platoon Sergeant Shot in Head - Hot LZ

Eric Winzenried

Character: Chopper Pilot - Hot LZ

Valerie Azlynn

Character: Damien's Assistant - Vietnam Crew

Matt Levin

Character: Cameraperson - Vietnam Crew

David Pressman

Character: First Assistant Director - Vietnam Crew

Amy Stiller

Character: Script Supervisor - Vietnam Crew

Dempsey Silva

Character: Special Effects Assistant - Vietnam Crew

Jeff Weidemann

Character: Speedman Assistant - Vietnam Crew

Nadine Ellis

Character: Speedman Assistant - Vietnam Crew

Rachel Avery

Character: Speedman Assistant - Vietnam Crew

Darryl Farmer

Character: Alpa's Posse - Vietnam Crew

Rod Tate

Character: Alpa's Posse - Vietnam Crew

Maria Menounos

Character: Maria Menounos

Jel Galiza

Character: Speedman's Chef - Speedman's Mansion

Yvette Nicole Brown

Character: Peck's Assistant - Peck's Office

Andrea De Oliveira

Character: Speedman's Trainer - Speedman's Mansion

J. Thomas Chon

Character: Half Squat - Flaming Dragon Compound

Jacob Chon

Character: Half Squat - Flaming Dragon Compound

Mini Anden

Character: Grossman's Secretary - Grossman's Office

Mike Hoagland

Character: Grossman's Assistant - Grossman's Office

Lance Bass

Character: Lance Bass

Linda Bella

Character: Jon Voight's Date (uncredited)

Denise Bradley

Character: Academy Awards Guest (uncredited)

Ella Christopher

Character: Stewardess (uncredited)

Natalie Cohen

Character: Stewardess (uncredited)

Larry Cruz

Character: Gorilla Soldier (uncredited)

Angela Daun

Character: Starlet (uncredited)

Clark DeVol

Character: Sack Race Boy (uncredited)

Kaylee Dodson

Character: Sack Race Girl (uncredited)

Jasmine Dustin

Character: Trophy Presenter (uncredited)

David D. Espinoza

Character: Audience Member (uncredited)

Eric Feliciano

Character: Academy Awards Audience Member (uncredited)

Miko Hughes

Character: Radio DJ (uncredited)

Dave Johnson

Character: Journalist (uncredited)

Jillian Johnston

Character: Four Leaf's Date (uncredited)

James Lew

Character: Flaming Dragon Compound Person (uncredited)

Lesley Nicole Lewis

Character: Booty Sweat Dancer (uncredited)

Fadhia Carmelle Marcelin

Character: Academy Awards Attendee (uncredited)

Anya Monzikova

Character: Trophy Presenter (uncredited)

Chad Mountain

Character: Agency Assistant (uncredited)

Brittany Perry-Russell

Character: Booty Sweat Girl (uncredited)

Simon Rhee

Character: Flaming Dragon Compound Person (uncredited)

Samantha Sadoff

Character: Farm Girl (uncredited)

Gaku Space

Character: Guerilla Guard (uncredited)

Becca Sweitzer

Character: Go Go Dancer (uncredited)

Kaye Marie Talise

Character: Academy Awards Attendee (uncredited)

Sandra Valladares

Character: Red Carpet Reporter (uncredited)

Julie Van

Character: Academy Awards Attendee (uncredited)

John Garry

Character: Trailer Announcer - The Fatties (voice) (uncredited)

Justin Theroux

Character: UH-1 Huey Gunner (uncredited)