Fired from his band and hard up for cash, guitarist and vocalist Dewey Finn finagles his way into a job as a fifth-grade substitute teacher at a private school, where he secretly begins teaching his students the finer points of rock 'n' roll. The school's hard-nosed principal is rightly suspicious of Finn's activities. But Finn's roommate remains in the dark about what he's doing.
Jack Black
as Dewey Finn
Joan Cusack
as Rosalie Mullins
Mike White
as Ned Schneebly
Sarah Silverman
as Patty Di Marco
Miranda Cosgrove
as Summer Hathaway
Joey Gaydos Jr.
as Zack
Kevin Alexander Clark
as Freddy Jones
Rivkah Reyes
as Katie
Robert Tsai
as Lawrence
Maryam Hassan
as Tomika
Aleisha Allen
as Alicia
Caitlin Hale
as Marta
