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

Chris Orf

Goofy Host

Racer Rodriguez

Bully #1

Ryan Lee

Classmate / Neighborhood Kid (uncredited)

Cameron Wofford

(uncredited)

Jackson Hurst

Male Employee

Jonathan Breck

Security Guard

Elizabeth Avellan

The Baby (voice)

Sheilava

Partygoer (uncredited)