Cady Heron
Regina George
Janis Ian
Gretchen Wieners
Karen Smith
Damian
Aaron Samuels
Kevin Gnapoor
Ms. Norbury
Mr. Duvall
Cady's Mom
Cady's Dad
Mrs. George
Coach Carr
Shane Oman
Kristen Hadley
Spelling Girl
Homeschooled Boy
African Warrior
Kristen's Boyfriend
"Farting" Guy
Michigan Girl
Chemistry Teacher
English Teacher
History Teacher
Music Teacher
German Teacher
Trang Pak
Sun Jin Dinh
Jason
Lea Edwards
Huge Guy
Emma Gerber
Mathlete Tim Pak
Amber D'Alessio
Giselle Sgro
Jessica Lopez
Bethany Byrd
Short Girl
Cady 5 Years Old
Nfume
Animal Dancer
Taylor Wedell
Mrs. Wedell
Kylie George
Dawn Schweitzer
Mr. George
Kissing Girl
Joan the Secretary
Salesperson
Skater Girl
Jock Girl
Crying Girl
Marymount Captain
Caroline Krafft
Mathlete Moderator
Junior Plastic
Glenn Coco (uncredited)
Wannabe (uncredited)