Rose Byrne

Renai Lambert

Ty Simpkins

Dalton Lambert

Patrick Wilson

Josh Lambert

Lin Shaye

Elise Rainier

Sinclair Daniel

Chris Winslow

Hiam Abbass

Professor Armagan

Andrew Astor

Foster Lambert

Juliana Davies

Kali Lambert

Steve Coulter

Carl

Peter Dager

Nick the Dick

Joseph Bishara

Lipstick Demon

Angus Sampson

Tucker

Leigh Whannell

Specs

Justin Sturgis

Alec Anderson

David Call

Smash Face / Ben Burton

Stephen Gray

Sick Kid

Robin S. Walker

Supervisor Robbins

Bridget Kim

Sorority Girl #1

Logan Wilson

Paige

Kasjan Wilson

Young Dalton / Young Josh

Mary Looram

Mourner

Adrian Acosta

Frat Boy #1

AJ Dyer

Frat Bro #2

Kalin Wilson

Server Frat Boy

E. Roger Mitchell

Dr. Bower

Dagmara Dominczyk

Priest (voice)

Tom Toland

Student (credit only)

Elaine Apruzzese

Pedestrian / Driver (uncredited)

Suki Úna Rae

Art Student (uncredited)

Desi Ramos

Student (uncredited)

Victorya Danylko-Petrovskaya

Sorority Girl (uncredited)