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

斉藤慶太

Kyle Katayanagi

斉藤祥太

Ken Katayanagi

Will Bowes

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

Marley Otto

Party Goer

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

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)