Cast[]
- Michael Cera as Scott Pilgrim / Nega Scott
- Mary Elizabeth Winstead as Ramona Flowers
- Kieran Culkin as Wallace Wells
- Alison Pill as Kim Pine
- Mark Webber as Stephen Stills
- Johnny Simmons as Neil Nordegraf
- Anna Kendrick as Stacey Pilgrim
- Ellen Wong as Knives Chau
- Brie Larson as Envy Adams
- Erik Knudsen as Luke Wilson
- Aubrey Plaza as Julie Powers
- Tennessee Thomas as Lynette Guycott
- Nelson Franklin as Michael Comeau
- Ben Lewis as Other Scott
- Chantelle Chung as Tamara Chen
- Erik Knudsen, Maurie W. Kaufmann and Abigail Chu as Crash and the Boys
- Thomas Jane and Clifton Collins Jr. as Vegan police
- Kristina Pesic and Ingris Haas as Sandra & Monique
- Christine Watson as Demon Hipster Chicks
- Bryan Lee O'Malley and Hope Larson as Lee's Palace Bar Patrons
The League of Evil Exes[]
- Satya Bhabha as Matthew Patel
- Chris Evans as Lucas Lee
- Brandon Routh as Todd Ingram
- Mae Whitman as Roxie Richter
- Shota Saito as Kyle Katayanagi
- Keita Saito as Ken Katayanagi
- Jason Schwartzman as Gideon Graves
Cast (Latin Mexican dub)[]
- Moisés Iván Mora dubbing Michael Cera (Scott Pilgrim and NegaScott)
- Karla Falcon dubbing Mary Elizabeth Winstead (Ramona Flowers)
- Alejandro Orozco dubbing Kieran Culkin (Wallace Wells)
- Mayra Arellano dubbing Alison Pill (Kim Pine)
- Óscar Flores dubbing Mark Webber (Stephen Stills)
- Jaime Alberto Carillo dubbing Johnny Simmons (Neil Nordegraf)
- Mariana Ortiz dubbing Anna Kendrick (Stacey Pilgrim)
- Gaby Ugarte dubbing Ellen Wong (Knives Chau)