Jack Black Dewey Finn
Miranda Cosgrove Summer Hathaway
Sarah Silverman Patty Di Marco
Amy Sedaris Mrs. Haynish
Joan Cusack Rosalie Mullins
Richard Linklater Director
Joanna Adler Summer's Mother
Jery Hewitt Stunt Coordinator
Nicky Katt Razor
Karen Patch Costume Design
Jim McConkey Steadicam Operator
Heather Goldenhersh Sheila
Frank Whaley Battle of the Bands Director (uncredited)
Sandi Figueroa Costumer
Ilene Starger Casting
Rivkah Reyes Katie
Mike White Screenplay, Ned Schneebly
Robert Schleinig Set Dresser
Martin Lasowitz Property Master
David Shumbris Stunts
Joseph La Corte Costumer
Tim Hopper Zack's Father
Cheryl Kilbourne-Kimpton Costume Supervisor
Felice Diamond Makeup Artist
Catherine A. Callahan Concert Goer (uncredited)
Adam Scher Art Direction
Adam Pascal Theo
Aleisha Allen Alicia
Kate McGregor-Stewart Mrs. Lemmons
Bob Colletti Stunts
Michael Cambria Second Assistant Camera
Peter Epstein Stunts
Angelo Massagli Frankie
Stephanie Finochio Stunts
Zoe E. Rotter Casting Assistant
Lee Wilkof Mr. Green
Eric Swanek First Assistant Camera
Suzzanne Douglas Tomika's Mother
Sharon Washington Alicia's Mother
Joseph E. Iberti Unit Production Manager
Scott Rudin Producer
Mandy Siegfried Female Employee
Shawnna Thibodeau Stunts
Wally Dunn Gym Teacher
MacIntyre Dixon Bus Driver
Karen Nazarov Groupie (uncredited)
Donald J. Hewitt Jr. Stunts
Tina Mckissick Stunts
Jordan-Claire Green Michelle
James Hosey Marco
Lucas Babin Spider
Z Infante Gordon
Sam Hoffman First Assistant Director
Lucas Papaelias Neil
Jamie Vergan Concert Goer (uncredited)
Jerry Popolis Assistant Hairstylist
Vince Cupone Stunts
Kim Jennings Assistant Art Director
Kathleen McNenny Freddy's Mother
Bruce MacCallum "B" Camera Operator
Cole Hawkins Leonard
Robert Lin Lawrence's Father
Elle Key Concert Goer
Timothy "Speed" Levitch Waiter
Rogier Stoffers Director of Photography
Maryam Hassan Tomika
Joey Gaydos Jr. Zack
Kevin Alexander Clark Freddy Jones
Cedric Cannon Leonard's Dad (uncredited)
Dina Sliwiak Makeup & Hair Assistant
Bernadette Mazur Makeup Artist
Kate Edwards Costume Supervisor