Breckin Meyer

Character: Josh

Seann William Scott

Character: E.L.

Amy Smart

Character: Beth

Paulo Costanzo

Character: Rubin

DJ Qualls

Character: Kyle

Rachel Blanchard

Character: Tiffany

Anthony Rapp

Character: Jacob

Fred Ward

Character: Earl Edwards

Tom Green

Character: Barry

Andy Dick

Character: Motel Clerk

Ethan Suplee

Character: Ed

Horatio Sanz

Character: French Toast Guy

Rhoda Griffis

Character: Tour Group Mom

Marla Sucharetza

Character: Sperm Bank Nurse

Ellen Albertini Dow

Character: Barry's Grandma

Edmund Lyndeck

Character: Barry's Grandpa

Jessica Cauffiel

Character: The Wrong Tiffany

Kohl Sudduth

Character: Mark

Wendell B. Harris Jr.

Character: Professor Anderson

Rini Bell

Character: Carla

Jaclyn DeSantis

Character: Heather

Aliya Campbell

Character: Wendy

Kim Fox

Character: Target Clerk

Patricia Gaul

Character: Cookie Edwards

Richie Dye

Character: Duffy

Mary Lynn Rajskub

Character: Blind Brenda

Tim Ware

Character: Officer Bortz

Julia Wright

Character: Joyce

Paula Claire Jones

Character: Stephanie

Richard Peterson

Character: Michael

Phe Caplan

Character: Boston Coed

Avery Kidd Waddell

Character: Jeff

Omar J. Dorsey

Character: Lawrence

Preston Wigasi Brant

Character: Chris

Mia Amber Davis

Character: Rhonda

Jimmy Kimmel

Character: Corky the Dog (Voice)

Bethany Sacks

Character: Lisa

Charlie McWade

Character: Brian

Todd Barry

Character: Campus Security #1

Bill Rowell

Character: Campus Security #2

Bill Gribble

Character: Bomb Squad Detective

Guenevere Rodriguez

Character: Tour Group

Al Wiggins

Character: Tour Group

Lisa Chyn

Character: Tour Group

Daniel Emery Taylor

Character: Tour Group

Rachel Marinacci

Character: Tour Group

Bob Place

Character: Tour Group

Frank Girardeau

Character: Tour Group

Marla Malcolm

Character: Tour Group

Matt Walsh

Character: Crime Scene Photographer

John Ross Bowie

Character: Waiter

Cristen Coppen

Character: Kim

Cleo King

Character: Woman on Bus

Lori Beth Sikes

Character: Party Guest

Kellie Garrigan

Character: Party Guest

Michael Cornier

Character: Party Guest

Frank Cooper

Character: Party Guest

Mark Bez

Character: Party Guest

Andrew Fowler

Character: Party Guest

Paul Simpson

Character: Party Guest

Krew Keth

Character: Party Guest

Marc Gordon

Character: Stepper

Tharon Johnson

Character: Stepper

Raymond DeLoatch

Character: Stepper

Will Aklin

Character: Stepper

Calvin J. Wilson

Character: Stepper

Benjamin Booker

Character: Stepper

Bridgett Wise

Character: Barry's Girl

Aerica D'Amaro

Character: Barry's Girl

Todd Phillips

Character: Foot Lover

Deborah Zoe

Character: E. L.'s Girlfriend

Johnny Genius

Character: Party Band

Moses

Character: Party Band

Tom Peyton

Character: Party Band

Ben Kramer

Character: Party Band

Eric Tobias

Character: Party Band