Ty SimpkinsDalton Lambert

Patrick WilsonJosh Lambert

Sinclair DanielChris Winslow

Rose ByrneRenai Lambert

Lin ShayeElise Rainier

Hiam AbbassProfessor Armagan

Andrew AstorFoster Lambert

Juliana DaviesKali Lambert

Steve CoulterCarl

Peter DagerNick the Dick

Joseph BisharaLipstick Demon

Angus SampsonTucker

Leigh WhannellSpecs

Justin SturgisAlec Anderson

David CallSmash Face / Ben Burton

Stephen GraySick Kid

Robin S. WalkerSupervisor Robbins

Bridget KimSorority Girl #1

Logan WilsonPaige

Kasjan WilsonYoung Dalton / Young Josh

Mary LooramMourner

Adrian AcostaFrat Boy #1

AJ DyerFrat Bro #2

Kalin WilsonServer Frat Boy

E. Roger MitchellDr. Bower

Dagmara DomińczykPriest (voice)

Tom TolandStudent (credit only)

Elaine Apruzzese

Suki Úna Rae

Desi Ramos

Victorya Danylko-Petrovskaya

Patrick WilsonDirector

Leigh WhannellCharacters & Story

Scott TeemsScreenplay

Jason BlumProducer

James WanProducer

Brian Kavanaugh-JonesExecutive Producer

Steven SchneiderExecutive Producer

Oren PeliProducer

Ryan TurekExecutive Producer

Charles LaytonExecutive Producer

Derek AmbrosiExecutive Producer