- Ana Gasteyer - Cady's Mom
- Neil Flynn - Cady's Dad
- Amy Poehler - Mrs. George
- Ky Pham - Trang Pak
- Dwayne Hill - Coach Carr
- Diego Klattenhoff - Shane Oman
- Alexandra Stapley - Taylor Wedell
- Laura de Carteret - Mrs. Wedell
- Molly Shanahan - Kristen Hadley
- Elana Shilling - Spelling Girl
- Graham Kartna - Homeschooled Boy
- Ely Henry - Homeschooled Boy
- David Aherne - Homeschooled Boy
- Ayo Agbonkpolo - African Warrior
- Jonathan Malen - Kristen Hadley's Boyfriend
- Jeff Moser - Farting Guy
- Danielle Nguyen - Sun Jin Dinh
- Miranda Edwards - Michigan Girl
- Les Porter - Chemistry Teacher
- Eve Crawford - English Teacher
- Jack Newman - History Teacher
- Michelyn Emelle - Music Teacher
- Bathsheba Garnett - German Teacher
- Daniel DeSanto - Jason
- Alisha Morrison - Lea Edwards
- Chris Anton - Huge Guy
- Jan Caruana - Emma Gerber
- Wai Choy - Tim Pak
- Julia Chantrey - Amber D'Alessio
- Jacky Chamberlain - Giselle Sgro
- Olympia Lukis - Jessica Lopez
- Stefanie Drummond - Bethany Byrd
- Kristen Bone - Short Girl
- Jessie Wright - Five-Year-Old Cady
- Tyson Fennell - Nfume
- Stephan Dickson - Animal Dancer
- Andreja Punkris - Animal Dancer
- Noelle Boggio - Animal Dancer
- Jordan Dawe - Animal Dancer
- Nicole Crimi - Kylie George
- Dan Willmott - Mr. George
- Michelle Hoffman - Kissing Girl
- Valerie Casault - Kissing Girl
- Sharron Matthews - Joan
- Bruce Hunter - Mathlete Moderator
- Jo Chim - Salesperson
- Kaylen Christensen - Jock Girl
- Jill Morrison - Crying Girl
- David Sazant - Marymount Captain
- Clare Preuss - Caroline Krafft
- Megan Millington - Junior Plastic
- Tara Shelley - Junior Plastic
- Shannon Todd - Junior Plastic
- David Reale - Glenn Coco (uncredited)
- Krysta Carter - Wannabe (uncredited)
-
Mark Waters
- Tina Fey
- Rosalind Wiseman
- Jill Sobel Messick
- Lorne Michaels
- Patrick Cyccone Jr.
- Marc Fishman
- Vic Radulich
- Amanda Scheer-Demme
- Jim Harrison
Capítulo disponible en las siguientes plataformas:
