Aaron Johnson (Dave Lizewski/Kick-Ass)
Nicolas Cage (Damon Macready/Big Daddy)
Christopher Mintz-Plasse (Chris D'Amico/Red Mist)
Mark Strong (Frank D'Amico)
Chloë Grace Moretz (Mindy Macready/Hit Girl)
Lyndsy Fonseca (Katie Deauxma)
Evan Peters (Todd)
Dexter Fletcher (Cody)
Corey Johnson (Sporty Goon)
Jason Flemyng (Lobby Goon)
Kenneth Simmons (Scary Goon)
Randall Batinkoff (Tre Fernandez)
Garrett M. Brown (Mr. Lizewski)
Elizabeth McGovern (Mrs. Lizewski)
Deborah Twiss (Mrs. Zane)
Sophie Wu (Erika Cho)
Anthony Desio (Baby Goon)
Adrian Martinez (Ginger Goon)
Joe Bacino (Posh Goon)
Stu "Large" Riley (Huge Goon)
Walle Jobara (Nervous Goon)
Carlos Besse Peres (Buttons)
Tamer Hassan (Matthew)
Yancy Butler (Angie D'Amico)
Tim Plester (Danil)
Hubert Boorder (Oscar Juarez)
Craig Ferguson (Himself)
Omar Soriano (Leroy)
Kofi Natei (Rosul)
Johnny Hopkins (1st Gang Kid)
Ohene Cornelius (2nd Gang Kid)
Russell Bentley (Medic)
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)
Dan Duran (Reporter)
Louis Young (Breaking News Reporter)
Katrena Rochell (Female Junkie)
Quinn Smith (Big Mean Boy)
Omari Hardwick (Sgt. Marcus Williams)
Xander Berkeley (Det. Gigante)
Michael Rispoli (Big Joe)
Clark Duke (Marty)