Amy Poehler

Mrs. George

Neil Flynn

Cady's Dad

Rachel McAdams

Regina George

Lacey Chabert

Gretchen Wieners

Amanda Seyfried

Karen Smith

Tina Fey

Ms. Norbury

Ely Henry

Homeschooled Boy

Jill Messick

Executive Producer

Diego Klattenhoff

Shane Oman

Lindsay Lohan

Cady Heron

Ana Gasteyer

Cady's Mom

Mark Waters

Director

Lizzy Caplan

Janis Ian

Daniel Franzese

Damian

Jonathan Bennett

Aaron Samuels

Rajiv Surendra

Kevin Gnapoor

Tim Meadows

Mr. Duvall

Dwayne Hill

Coach Carr

Molly Shanahan

Kristen Hadley

Elana Shilling

Spelling Girl

Graham Kartna

Homeschooled Boy

David Aherne

Homeschooled Boy

Ayo Agbonkpolo

African Warrior

Jonathan Malen

Kristen's Boyfriend

Jeff Moser

"Farting" Guy

Miranda Edwards

Michigan Girl