• 
  Richard Linklater

  regizor

• 
  Mike White

  scenarist

• 
  Jack Black

  Dewey Finn
• 
  Joan Cusack

  Directorul Mullins
• 
  Mike White

  Ned Schneebly
• 
  Rebecca Brown

  Katie
• 
  Aleisha Allen

  Alicia
• 
  Miranda Cosgrove

  Summer Hathaway

• 
  Amy Sedaris

  Mrs. Haynish
• 
  Nicky Katt

  Razor
• 
  Lee Wilkof

  Mr. Green
• 
  Tim Hopper

  Zack's Father
• 
  Cole Hawkins

  Leonard
• 
  Joanna Adler

  Summer's Mother
• 
  Frank Whaley

  Battle of the bands director

• 
  Sarah Silverman

  Patty Di Marco
• 
  Marty Murphy

  Concerned Father
• 
  Lucas Babin

  Spider
• 
  Adam Pascal

  Theo
• 
  Jordan-Claire Green

  Michelle
• 
  Mandy Siegfried

  Female Employee
• 
  Chris Stack

  Doug
• 
  Angelo Massagli

  Frankie
• 
  Lucas Papaelias

  Neil
• 
  Kevin Alexander Clark

  Freddy Jones
• 
  Joey Gaydos Jr.

  Zack
• 
  Veronica Afflerbach

  Eleni
• 
  Robert Tsai

  Lawrence