Jimmy Bennett

Toby Thompson

Jake Short

Nose Noseworthy

Kat Dennings

Stacy Thompson

Trevor Gagnon

Loogie Short

Devon Gearhart

Cole Black

Jolie Vanier

Helvetica Black

Rebel Rodriguez

Lug Short

Leo Howard

Laser Short

Leslie Mann

Mom Thompson

Jon Cryer

Dad Thompson

William H. Macy

Dr. Noseworthy

James Spader

Carbon Black

Angela Lanza

Teacher

Alejandro Rose-Garcia

John / Boyfriend

Cambell Westmoreland

Blinker #1

Zoe Webb

Blinker #2

Chris Orf

Goofy Host

Racer Rodriguez

Bully #1

Rocket Rodriguez

Bully #2

John Chilleri

Hallway Kid (uncredited)

Josh Christman

Classroom Kid (uncredited)

Joshua Drew

Classmate (uncredited)

Zach Irsik

Schoolyard Kid (uncredited)

Ryan Lee

Classmate / Neighborhood Kid (uncredited)

Christina Lehner

Classmate (uncredited)

Micaela Phillips

Girl on Bus (uncredited)

Bella Perryman

Classmate (uncredited)

Cameron R. Murphy

Neighborhood Kid

Henry J. Smith 3rd

Neighborhood Kid (uncredited)

Cameron Wofford

(uncredited)

Alexis Woods

Schoolyard Kid (uncredited)

Tina Rodriguez

Female Employee

Jackson Hurst

Male Employee

Jonathan Breck

Security Guard

Elizabeth Avellan

The Baby (voice)

Bianca Rodriguez

The Baby

Sheilava

Partygoer (uncredited)