Jack Black

Professor Sheldon 'Shelly' Oberon

Danny Glover

Milo

Dwayne Johnson

Dr. Smolder Bravestone

Danny DeVito

Eddie

Awkwafina

Ming

Chris Van Allsburg

Executive Producer

Rhys Darby

Nigel Billingsley

Kevin Hart

Franklin 'Mouse' Finbar

Colin Hanks

Alex

Nick Jonas

Jefferson 'Seaplane' McDonough

Dania Ramirez

Lady in Red

Karen Gillan

Ruby Roundhouse

Alex Wolff

Spencer Gilpin

Ser'Darius Blain

Anthony 'Fridge' Johnson

Madison Iseman

Bethany

Morgan Turner

Martha Kaply

Marin Hinkle

Spencer's Mom

Jake Kasdan

Director

David B. Householter

Executive Producer

Ted Field

Executive Producer

Mike Weber

Executive Producer

Rory McCann

Jurgen the Brutal

Nick Gomez

Oasis Drunk

William Teitler

Executive Producer

Jeff Pinkner

Writer

Scott Rosenberg

Writer

Vince Pisani

Pharmacy Manager

Massi Furlan

Switchblade

Madison Johnson

Little Bethany Vreeke

Dorothy Steel

Village Elder

Jennifer Patino

Bravestone's Mother

Derek Russo

Key Master

Melvin Mar

Executive Producer