Aaron Taylor-Johnson Dave Lizewski / Kick-Ass

Chloë Grace Moretz Mindy Macready / Hit Girl

Nicolas Cage Damon Macready / Big Daddy

Lyndsy Fonseca Katie Deauxma

Mark Strong Frank D'Amico

Deborah Twiss Mrs. Zane

Christopher Mintz-Plasse Chris D'Amico / Red Mist

Elizabeth McGovern Mrs. Lizewski

Omari Hardwick Sergeant Marcus Williams

Xander Berkeley Detective Gigante

Garrett M. Brown Mr. Lizewski

Clark Duke Marty

Evan Peters Todd

Sophie Wu Erika Cho

Stu 'Large' Riley Huge Goon

Michael Rispoli Big Joe

Corey Johnson Sporty Goon

Kenneth Simmons Scary Goon

Anthony Desio Baby Goon

Randall Batinkoff Tre Fernandez

Dexter Fletcher Cody

Yancy Butler Angie D'Amico

Craig Ferguson Craig Ferguson

Jason Flemyng Lobby Goon

Adrian Martinez Ginger Goon

Joe Bacino Posh Goon

Johnny Hopkins 1st Gang Kid

Ohene Cornelius 2nd Gang Kid

Carlos Besse Peres Buttons

Russell Bentley Medic

Tamer Hassan Matthew

Tim Plester Danil

Hubert Boorder Oscar Juarez

Christopher McGuire Diner Fight Guy #1

Max White Diner Fight Guy #2

Dean Copkov Diner Fight Guy #3

Jacob Cartwright Running Teenager

Maurice DuBois News Anchor

Dana Tyler News Anchor

Omar A. Soriano Leroy

Katrena Rochell Female Junkie

Kofi Natei Rasul

Dan Duran Reporter

Louis Young Breaking News Reporter

Val Jobara Nervous Goon

Quinn Smith Big Mean Boy

Kirk Tingblad Audience Member (uncredited)

Peter Bartfay Comic Store Customer (uncredited)

Jason Salkey 1st Cop (uncredited)

Daphne Cheung Siew Ling (uncredited)

Russell De Rozario Man in Elevator (uncredited)

Annie Cooper Jess (uncredited)

Adam Blampied Kid in Comic Book Store (uncredited)

Wayne Curnew Bartender (uncredited)

Tangara Jones Gang Girl (uncredited)

Rab Affleck Moustache Goon (uncredited)

Alexander Hathaway Comic Book Store Manager (uncredited)