Jesse Eisenberg as James Brennan
Kristen Stewart as Em
Martin Starr as Joel
Bill Hader as Bobby
Kristen Wiig as Paulette
Margarita Levieva as Lisa P
Ryan Reynolds as Connell rest of c
Declan Baldwin as Male Customer
Aaron Bernard as Adventure Guest
Mary Birdsong as Francy
Dan Bittner as Pete O'Malley
Kevin Breznahan as Molly Hatchet
Matt Bush as Frigo
Kimisha Renee Davis as Kelly
Gennaro DiSilvio as Nicky
Adam Dunhoff as Guy at the keg
Chris Edborg as Bus Boy #1
David Eveler as Park employee
Kelsey Ford as Arlene
Luc as Gentile
Jack Gilpin as Mr. Brennan
Marc Grapey as Drunk Dad
Barret Hackney as Munch
Ian Harding as Wealthy Prepster
Alana Hixson as Prettiest Girl
Alex Hooper as Co-worker
Paige Howard as Sue O'Malley
William Kania as Short Order Cook
Adam Kroloff as Adult Contestant
Wendie Malick as Mrs. Brennan
Stephen M as t
David Dale McCue as Park Patron
Benjamin Jeran McGinn as Stardust Schmoozer
Jeremy Moon as Adventureland Patron
Jillian O'Neil as Velvet Touch Patron
Michael S. O'Neil as Velvet Touch Patron
Josh Pais as Mr. Lewin
Zack Palmer as Joel's Brother
Joe Pawlenko as Denny
Jared Pfennigwerth as ADV Employee
Alanna Romansky as Leila
Kevin Roth as Ticketer
Logan C. Sayre as Arcade Boy
Russell Steinberg as Tribute Band Singer
Vanessa Wanger as Ronnie
Bl as e Ward
Michael Zegen as Eric