Jesse Eisenberg

James Brennan

Kristen Stewart

Em Lewin

Martin Starr

Joel

Kristen Wiig

Paulette

Bill Hader

Bobby

Ryan Reynolds

Mike Connell

Margarita Levieva

Lisa P.

Jack Gilpin

Mr. Brennan

Josh Pais

Mr. Lewin

Wendie Malick

Mrs. Brennan

Mary Birdsong

Francy

Matt Bush

Tommy Frigo

Paige Howard

Sue O'Malley

Dan Bittner

Pete O'Malley

Barret Hackney

Munch

Michael Zegen

Eric

Kimisha Renee Davis

Kelly

Vanessa Hope

Ronnie Connell

Kelsey Ford

Arlene

Ryan McFarland

Brad

Moe Slinger

Loud Kid #1

Todd Cioppa

Velvet Touch Manager

Jesse Slinger

Loud Kid #2

Jack Baldwin

Barfing Kid

Stephen Mast

Rich

Adam Kroloff

Adult Contestant

Kevin Breznahan

Molly Hatchet T-Shirt Guy

Marc Grapey

Panda Con Dad

Andrew Ransom

Foreigner Tribute Band Member

Joe Sanderson

Foreigner Tribute Band Member

Cliff Chien

Foreigner Tribute Band Member

Russell Steinberg

Foreigner Tribute Band Member

Rob Orr

Foreigner Tribute Band Member

Eric Schaeffer

Foreigner Tribute Band Member

Gennaro DiSilvio

Nicky

Alexis Ferrante

Nicky's Girlfriend

Joe Pawlenko

Nicky's Pal

Zachary Palmer

Joel's Younger Brother

Declan Baldwin

Male Customer

Ian Harding

Wealthy Prepster

Ashtin Petrella

Prepster's Girlfriend

Amy Landis

Mrs. Ostrow

Janine Viola

Mrs. Frigo

Alana Hixson

Pretty Girl #1

Erin Cappiccie

Pretty Girl #2

Lisa Lamendola

Foxy Cougar (uncredited)

Jackson Nunn

Dancer (uncredited)