Jack Black R. L. Stine (uncredited)
Ken Jeong Mr. Chu
Chris Parnell Walter
Wendi McLendon-Covey Kathy Quinn
Madison Iseman Sarah Quinn
Shari Headley Mrs. Carter
Sydney Bullock Vanessa
Neal H. Moritz Producer
Jeremy Ray Taylor Sonny Quinn
R.L. Stine Novel, Science Award Presenter-Principal Harrison
Brick Jackson Paramedic- TJ
Mick Wingert Slappy (voice)
Peyton Wich Tommy Madigan
Drew Scheid Tyler's Crew
Christian Finlayson Cooper
Caleel Harris Sam Carter
Rich Delia Casting
Sarah Monat Foley Artist
Noah Bain Garret Stunts
Darin De Paul Terry / Angry Pumpkin (voice) (uncredited)
Nick Glennie-Smith Conductor
Greg Orloff Sound Re-Recording Mixer
Thirl Haston Stunts
Cassidy Alexandra Kahler Stunts
Sawyer D. Jones Trick-or-Treater (uncredited)
Chris Schmidt Jr. Stunts
Steven Ritzi Stunt Coordinator
Darren Lemke Story
Suehyla El-Attar Young Teacher in Hole (uncredited)
Tyler Silva Tyler's Crew
Déjá Dee Mrs. Hoover
Dominic Lewis Original Music Composer
Ashley Rae Riddick Stunts
Adruitha Lee Hair Department Head
Howard London ADR Mixer
Christopher TJ McGuire Steadicam Operator
Steve C. Aaron Production Sound Mixer
Ari Sandel Director
Sean McCormack Supervising Sound Editor
Kendrick Cross Sam's Father
T. Ryan Mooney Stunts
Tara Feldstein Bennett Casting Director
Josh Mueller Stunts
Kurt Kornemann Key Grip
Paul O'Connor Stunts
Ando Johnson Sound Effects Editor
Benjamin L. Cook Sound Effects Editor
Nerses Gezalyan Foley Mixer
Deborah Forte Producer
Eric A. Norris Sound Designer
Rob Lieber Screenplay, Story
Sarah Reagin Clemmensen Stunt Double
Robert Troy ADR Editor
Paul D. Kelly Art Direction
Branden Spencer Supervising ADR Editor
Barry Peterson Director of Photography
Bill McConnell Jr. Second Assistant "A" Camera
Laurence Chavez Stunts
Jessi Goei Maya
Leo Satkovich Key Makeup Artist
Ben Aycrigg Stunts
Lex D. Geddings Stunts
Timothy M. Bourne Producer's Assistant, Executive Producer, Unit Production Manager, Second Unit Director
Robin Harlan Foley Artist
Jeremy Conner Stunts
Tania Landau Executive Producer
Jeanette Scott Set Decoration
Laura Harris Atkinson ADR Editor
James M. Cox Chief Lighting Technician
Courtney Lauren Cummings Jess
Ivy O'Brien (uncredited)
Jason Looney Terrified Parent Monster-Mr. Rennie