Michael Cera
Scott Pilgrim
Mary Elizabeth Winstead
Ramona Flowers
Ellen Wong
Knives Chau
Kieran Culkin
Wallace Wells
Alison Pill
Kim Pine
Mark Webber
Stephen Stills
Johnny Simmons
Young Neil
Jason Schwartzman
Gideon Graves
Anna Kendrick
Stacey Pilgrim
Aubrey Plaza
Julie Powers
Satya Bhabha
Matthew Patel
Chris Evans
Lucas Lee
Brandon Routh
Todd Ingram
Mae Whitman
Roxy Richter
Brie Larson
Envy Adams
Keita Saito
Kyle Katayanagi
Shota Saito
Ken Katayanagi
Will Bowes
Party Goer
Celine Lepage
Party Goer
Mark Leroy
Party Goer
Kjartan Hewitt
Jimmy
Ben Lewis
Other Scott
Nelson Franklin
Comeau
Kristina Pesic
Sandra
Matt Watts
Promoter
Ingrid Haas
Monique
Maurie W. Kaufmann
Joel
Marley Otto
Party Goer
Christine Watson
Demon Hipster Chick
Chantelle Chung
Tamara Chen
Don McKellar
Director
Jung-Yul Kim
Goon
Erik Knudsen
Crash
Abigail Chu
Trasha
Tennessee Thomas
Lynette Guycott
Emily Kassie
Winifred Hailey
Michael Lazarovitch
Some Guy
John Patrick Amedori
Lollipop Hipster
Joe Dinicol
Elevator Hipster
Craig Stickland
Elevator Hipster
Bill Hader
The Voice (voice)
Thomas Jane
Vegan Police (uncredited)
Clifton Collins Jr.
Vegan Police (uncredited)
Bryan Lee O'Malley
Lee's Palace Bar Patron (uncredited)