Jason Biggs
Paul Tannek

Mena Suvari
Dora Diamond

Zak Orth
Adam

Thomas Sadoski
Chris

Jimmi Simpson
Noah

Greg Kinnear
Prof. Edward Alcott

Dan Aykroyd
Dad

Twink Caplan
Gena

Bobby Slayton
Sal

Robert Miano
Victor

Mollie Heckerling
Annie

Colleen Camp
Homeless Woman

Andy Dick
Another City Worker

Steven Wright
Panty Hose Customer

Brian Backer
Doctor

Meredith Scott Lynn
Dog Loving Girl

Stuart Cornfeld
Foreman

Taylor Negron
Photographer

Andrea Martin
Professor

Scott Thomson
Cell Phone Guy

Kedar Brown
Jay

Catherine Black
Military Jacket Girl

Rick Demas
Bouncer

Sanjay Talwar
Convenience Cashier

Tracy Dawson
Drug Saleswoman

Carolyn Goff
Kristen

Mike Beaver
Boy at Concert

Richard Blackburn
Security Guard

Billy Otis
Prisoner

Jenny Kim
Student Worker

Alison Sealy-Smith
University Official

Martin Roach
Veterinarian

Heidi Weeks
Saks Saleswoman

Daniela Olivieri
Store Tailor

Kavita Persaud
Hi Ro Student

Corwin Hall
Hi Ro Student

Andrew Storms
Hi Ro Student

Serena Lee
Hi Ro Student

Nick Bacon
Beer Store Clerk

Valerie Boyle
Aunt

Colleen Reynolds
Aunt

Jack Jessop
Grandfather

Mallory Margel
Paul's Sister

Patrick Mark
Bloody Nose Guy

Tanja Jacobs
Party Goer

Darrin Brown
Party Goer

James Barrett
Guy

Rob Tinkler
Bar Patron

Katherine Giaquinto
College Girl

Robinne Fanfair
College Girl

Clare Preuss
College Girl

Sadie LeBlanc
College Girl

Silvana Kane
College Girl

Kerri Michalica
College Girl

Geoffrey Antoine
Coffee Counter Guy

Danny Truelove
Dancing Kid

Marc McMulkin
Dancing Kid

Jonathon Fernandes
Dancing Kid

Tiffany Leonardo
Dancing Kid

David Spade
Video Store Clerk (uncredited)

Alan Cumming
Alan Cumming / Emcee (uncredited)

Paul Puzzella
T-Shirt Seller (uncredited)