Jack Black

Professor Sheldon 'Shelly' Oberon

Dwayne Johnson

Dr. Smolder Bravestone

Tracey Bonner

Fridge's Mom

Marc Evan Jackson

Principal Bentley

Rhys Darby

Nigel Billingsley

Kevin Hart

Franklin 'Mouse' Finbar

Carlease Burke

Miss Mathers

Bobby Cannavale

Van Pelt

Najah Jackson

Girl in Car

Nick Jonas

Jefferson 'Seaplane' McDonough

Karen Gillan

Ruby Roundhouse

Alex Wolff

Spencer Gilpin

Ser'Darius Blain

Anthony 'Fridge' Johnson

Madison Iseman

Bethany Walker

Morgan Turner

Martha Kaply

Sean Buxton

Jogger

Mason Guccione

Gamer

Marin Hinkle

Spencer's Mom

Natasha Charles Parker

Bethany's Mom

Kat Altman

Lucinda

Maribeth Monroe

Teacher

Missi Pyle

Coach Webb

Michael Shacket

Fussfeld

Jamie Renell

Male Gym Teacher

Jake Kasdan

Director

David B. Householter

Executive Producer

Dany Garcia

Executive Producer

Ted Field

Executive Producer

Mike Weber

Executive Producer