Erika Henningsen (Cady Heron), Taylor Louderman (Regina George), Krystina Alabado (Gretchen Wieners), Kate Rockwell (Karen Smith), Olivia Kaufmann (s/b Janis Sarkisian), Grey Henson (Damian Hubbard), Kyle Selig (Aaron Samuels), Cheech Manohar (Kevin Gnapoor), Jennifer Simard (Mrs. Heron/Ms. Norbury/Mrs. George), Rick Younger (Principal Duvall), Brendon Stimson (Mr. Heron), Myles McHale (Coach Carr/Glen Coco/Math Moderator)