Spontaneous

Katherine Langford

As Mara Carlyle

Charlie Plummer

As Dylan

Yvonne Orji

As Agent Rosetti

Hayley Law

As Tess McNulty

Piper Perabo

As Angela

Rob Huebel

As Charlie

Marlowe Percival

As Becky

Laine MacNeil

As Jenna Dalton

Clive Holloway

As Joe Dalton

Doralynn Mui

As Cranberry

Kaitlyn Bernard

As Skye

Jared Ager-Foster

As Jed

Mellany Barros

As Katelyn Ogden

Chelah Horsdal

As Denise

Luvia Petersen

As Dr. Rolanda

Jarrett Carlington

As Perry

Peter Bundic

As Steve

Bzhaun Rhoden

As Harper

Braeden Shrimpton

As Cole

Eva Day

As Claire

Darcey Johnson

As Liquor Attendant

Dolores Drake

As Waitress

Francisco Trujillo Avalos-Davidson

As Grieving Parent

Laura Di Cicco

As Grieving Parent #2

Michael Brian

As Investigator #1

Ash Lee

As Investigator

Cameron Dent

As Gym Teacher

Payton Lepinski

As Baby Mara

Melody Nosipho Niemann

As Baby Tess

Glen Pinchin

As Waitress Spouse

Jason Tremblay

As Officer

Milo Shandel

As Officiant

Danielle Kremeniuk

As Female Cop

Sophia Daly

As Baby Katelyn

Paul Moniz de Sa

As Katelyn's Dad

Kayt Roth

As Protestor

Jason Sakaki

As Skinny Kid

Jeremy Arnold

As Hazmat

Brahm Taylor

As Hazmat #2

Amanda Gray

As Hazmat Doctor #2 (uncredited)

Junnicia Lagoutin

As Student