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 Ledgin
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)