James Brennan

Jesse Eisenberg

Em Lewin

Kristen Stewart

Joel

Martin Starr

Paulette

Kristen Wiig

Bobby

Bill Hader

Mike Connell

Ryan Reynolds

Lisa P.

Margarita Levieva

Mr. Brennan

Jack Gilpin

Mr. Lewin

Josh Pais

Arlene

Kelsey Ford

Mrs. Brennan

Wendie Malick

Eric

Michael Zegen

Francy

Mary Birdsong

Brad

Ryan McFarland

Tommy Frigo

Matt Bush

Sue O'Malley

Paige Howard

Pete O'Malley

Dan Bittner

Munch

Barret Hackney

Kelly

Kimisha Renee Davis

Ronnie Connell

Vanessa Hope

Arlene

Kelsey Ledgin

Loud Kid #1

Moe Slinger

Velvet Touch Manager

Todd Cioppa

Loud Kid #2

Jesse Slinger

Barfing Kid

Jack Baldwin

Rich

Stephen Mast

Adult Contestant

Adam Kroloff

Molly Hatchet T-Shirt Guy

Kevin Breznahan

Panda Con Dad

Marc Grapey

Foreigner Tribute Band Member

Andrew Ransom

Richard Karn

Foreigner Tribute Band Member

Joe Sanderson

Jason London

Foreigner Tribute Band Member

Cliff Chien

Foreigner Tribute Band Singer

Russell Steinberg

Kristin Mellian

Teri Lee

Foreigner Tribute Band Member

Rob Orr

Foreigner Tribute Band Member

Eric Schaeffer

Kristen Ryda

Rachel Sowers

Nicky

Gennaro DiSilvio

Nicky's Girlfriend

Alexis Ferrante

Carl Harry Carlson

Nicky's Pal

Joe Pawlenko

Joel's Younger Brother

Zachary Palmer

Male Customer

Declan Baldwin

Wealthy Prepster

Ian Harding

Prepster's Girlfriend

Ashtin Petrella

Mrs. Ostrow

Amy Landis

Mrs. Frigo

Janine Viola

Pretty Girl #1

Alana Hixson

Pretty Girl #2

Erin Cappiccie

Foxy Cougar (uncredited)

Lisa Lamendola

Dancer (uncredited)

Jackson Nunn