Adam Pascal
Theo

Aleisha Allen
Alicia

Angelo Massagli
Frankie

Brian Falduto
Billy

Caitlin Hale
Marta

Cole Hawkins
Leonard

Frank Whaley
Directeur du tremplin rock

Jack Black
Dewey Finn

Jaclyn Neidenthal
Emily

James Hosey
Marco

Joan Cusack
Rosalie Mullins

Joey Gaydos Jr.
Zack

Jordan-Claire Green
Michelle

Kevin Alexander Clark
Freddy Jones, batteur

Lucas Babin
Spider

Maryam Hassan
Tomika

Mike White
Ned Schneebly

Miranda Cosgrove
Summer Hathaway

Rebecca Brown
Katie, bassiste

Robert Tsai
Lawrence

Sarah Silverman
Patty Di Marco

Veronica Afflerbach
Eleni

Zachary Infante
Gordon