Mara

Katherine Langford

Angela

Piper Perabo

Dylan

Charlie Plummer

Agent Rosetti

Yvonne Orji

Tess

Hayley Law

Denise

Chelah Horsdal

Charlie

Rob Huebel

Skye

Kaitlyn Bernard

Becky

Marlowe Percival

Jenna Dalton

Laine MacNeil

Joe Dalton

Clive Holloway

Cranberry

Doralynn Mui

Waitress

Dolores Drake

Baby Mara

Payton Lepinski

Jed

Jared Ager-Foster

Officiant

Milo Shandel

Katelyn Ogden

Mellany Barros

Officer

Jason Tremblay

Female Cop

Danielle Kremeniuk

Dr. Rolanda

Luvia Petersen

Perry

Jarrett Carlington

Baby Tess (as Melody Niemann)

Melody Nosipho Niemann

Steve

Peter Bundic

Harper

Bzhaun Rhoden

Student

Junnicia Lagoutin

Cole

Braeden Shrimpton

Investigator

Ash Lee

Claire

Eva Day

Liquor Attendant

Darcey Johnson

Grieving Parent

Francisco Trujillo

Grieving Parent

Francisco Trujillo Avalos-Davidson

Grieving Parent #2

Laura Di Cicco

Katelyn's Dad

Paul Moniz de Sa

Investigator #1

Michael Brian

Gym Teacher

Cameron Dent

Baby Katelyn

Sophia Daly

Hazmat Doctor #2 (uncredited)

Amanda Gray

Waitress Spouse

Glen Pinchin

Hazmater

Jeremy Arnold

Skinny Kid

Jason Sakaki

Protestor

Kayt Roth

Hazmat #2

Brahm Taylor

Chris Shields

Officer

Jason E. Tremblay