Lindsay Lohan character Cady Heron
Rachel McAdams character Regina George
Lacey Chabert character Gretchen Wieners
Amanda Seyfried character Karen Smith
Lizzy Caplan character Janis Ian
Daniel Franzese character Damian Leigh
Jonathan Bennett character Aaron Samuels
Tina Fey character Ms. Sharon Norbury
Tim Meadows character Principal Ron Duvall
Amy Poehler character June George
Ana Gasteyer character Betsy Heron
Neil Flynn character Chip Heron
Rajiv Surendra character Kevin Gnapoor
Elana Shilling character Spelling Girl
Graham Kartna character Homeschooled Boy
Ely Henry character Homeschooled Boy
David Aherne character Homeschooled Boy
Ayo Agbonkpolo character African Warrior
Molly Shanahan character Kristen Hadley
Jonathan Malen character Kristen Hadley's Boyfriend
Jeff Moser character Farting Guy
Miranda Edwards character Michigan Girl
Les Porter character Chemistry Teacher
Eve Crawford character English Teacher
Jack Newman character History Teacher
Michelyn Emelle character Music Teacher
Bathsheba Garnett character German Teacher
Ky Pham character Trang Pak
Danielle Nguyen character Sun Jin Dinh
Daniel DeSanto character Jason
Alisha Morrison character Lea Edwards
Chris Anton character Huge Guy
Dwayne Hill character Coach Carr
Diego Klattenhoff character Shane Oman
Jan Caruana character Emma Gerber
Wai Choy character Tim Pak
Julia Chantrey character Amber D'Alessio
Jacky Chamberlain character Giselle Sgro
Olympia Lukis character Jessica Lopez
Stefanie Drummond character Bethany Byrd
Kristen Bone character Short Girl
Jessie Wright character Cady 5 Years Old
Tyson Fennell character Nfume
Stephan Dickson character Animal Dancer
Andreja Punkris character Animal Dancer
Noelle Boggio character Animal Dancer
Jordan Dawe character Animal Dancer
Alexandra Stapley character Taylor Wedell
Laura de Carteret character Mrs. Wedell
Nicole Crimi character Kylie George
Erin Norah Thompson character Dawn Schweitzer
Dan Willmott character Mr. George
Michelle Hoffman character Kissing Girl
Valerie Casault character Kissing Girl
Sharron Matthews character Joan the Secretary
Jo Chim character Salesperson
Randi Lee Butcher character Skater Girl
Erin Jarvis character Skater Girl
Kaylen Christensen character Jock Girl
Jill Morrison character Crying Girl
David Sazant character Marymount Captain
Clare Preuss character Caroline Krafft
Bruce Hunter character Mathlete Moderator
Megan Millington character Junior Plastic
Tara Shelley character Junior Plastic
Shannon Todd character Junior Plastic
David Reale character Glenn Coco (uncredited)
Krysta Carter character Wannabe (uncredited)
