Satan

Jack Black

Liam Turner

Robert Timothy Smith

Dr. Finkleman

Keegan-Michael Key

Molly Turner

Brianne Howey

Bill Turner

Hayes MacArthur

Mr. Charles

P.J. Byrne

Post Malone

Post Malone

Gibby

Jaden Carson Baker

Emma

Kai Cech

Aiden

Gavin Munn

Crossing Guard

Cate Freedman

Lucifer (uncredited)

Ben Stiller

Science Teacher

Kyle Gass

Lee

Lee Reyes

Joey

Bash Hagelin

Grayson

Bryson Dean Haney

Technician

Lindsay Rootare

Jock

Luke Chiappetta

Male Newscaster

Greg Clarkson

Female Newscaster

Maiya Moran

Spencer

Leo Easton Kelly

Blitzen (voice)

Tierre Turner

Little Kid’s Mom

Carole Kaboya

Male Nurse

Travon McEntyre

Attractive Girl

Selah Kimbro Jones

Tattoo Tony

Abe Farrelly