Jack Black Dewey Finn
Joan Cusack Rosalie Mullins
Miranda Cosgrove Summer Hathaway
Sarah Silverman Patty Di Marco
Amy Sedaris Mrs. Haynish
Mike White Ned Schneebly, Screenplay
Frank Whaley Battle of the Bands Director (uncredited)
Joseph E. Iberti Unit Production Manager
Don Hewitt Sr. Stunt Coordinator
Richard Linklater Director
Jery Hewitt Stunt Coordinator
Cole Hawkins Leonard
Scott Rudin Producer
Nicky Katt Razor
Shawnna Thibodeau Stunts
Peter Epstein Stunts
Aleisha Allen Alicia
Sharon Washington Alicia's Mother
Stephanie Finochio Stunts
Bruce MacCallum "B" Camera Operator
Adam Pascal Theo
Joanna Adler Summer's Mother
Lee Wilkof Mr. Green
Donald J. Hewitt Jr. Stunts
Tim Hopper Zack's Father
Kevin Alexander Clark Freddy Jones
Kate McGregor-Stewart Mrs. Lemmons
Rivkah Reyes Katie
Lucas Babin Spider
Suzzanne Douglas Tomika's Mother
Jordan-Claire Green Michelle
Wally Dunn Gym Teacher
Sandra Adair Editor
MacIntyre Dixon Bus Driver
David Shumbris Stunts
Alan D'Angerio Hairstylist
Cedric Cannon Leonard's Dad (uncredited)
Ryan O'Connor No Vaccancy's Biggest Fan (uncredited)
Bernadette Mazur Makeup Artist
Sam Hoffman First Assistant Director
Jim McConkey Steadicam Operator
Angelo Massagli Frankie
Rod Calarco Second Assistant "B" Camera
Catherine A. Callahan Concert Goer (uncredited)
Joey Gaydos Jr. Zack
Lucas Papaelias Neil
Eric Swanek First Assistant Camera
Z Infante Gordon
Michele Paris Makeup Artist
Mandy Siegfried Female Employee
Elle Key Concert Goer
Dina Sliwiak Makeup & Hair Assistant
Heather Goldenhersh Sheila
Kim Brockington Leonard's Mother
Kate Edwards Costume Supervisor
Zoe E. Rotter Casting Assistant
Debbie Lucas Seamstress
Maryam Hassan Tomika
Bob Colletti Stunts
Robert Lin Lawrence's Father
Sandi Figueroa Costumer
Michael Cambria Second Assistant Camera
Kathleen McNenny Freddy's Mother
Steve Nicolaides Executive Producer
Jerry Popolis Assistant Hairstylist
James Hosey Marco
Chris Stack Doug
Andrew Weisblum Assistant Editor
Johnny Sullivan Guy in Crowd Who Catches Dewey (uncredited)
Jim Dunbar Music Coordinator
Nancy Cabrera Foley Artist
Cheryl Kilbourne-Kimpton Costume Supervisor