Spontaneous
When students in their high school begin inexplicably exploding (literally), seniors Mara and Dylan struggle to survive in a world where each moment may be their last.
Katherine Langford
Mara Carlyle
Charlie Plummer
Dylan
Yvonne Orji
Agent Rosetti
Hayley Law
Tess McNulty
Piper Perabo
Angela
Rob Huebel
Charlie
Marlowe Percival
Becky
Laine MacNeil
Jenna Dalton
Clive Holloway
Joe Dalton
Doralynn Mui
Cranberry
Kaitlyn Bernard
Skye
Jared Ager-Foster
Jed
Mellany Barros
Katelyn Ogden
Chelah Horsdal
Denise
Luvia Petersen
Dr. Rolanda
Jarrett Carlington
Perry
Peter Bundic
Steve
Bzhaun Rhoden
Harper
Braeden Shrimpton
Cole
Eva Day
Claire
Darcey Johnson
Liquor Attendant
Dolores Drake
Waitress
Francisco Trujillo Avalos-Davidson
Grieving Parent
Laura Di Cicco
Grieving Parent #2
Michael Brian
Investigator #1
Ash Lee
Investigator
Cameron Dent
Gym Teacher
Payton Lepinski
Baby Mara
Melody Nosipho Niemann
Baby Tess
Glen Pinchin
Waitress Spouse
Jason Tremblay
Officer
Milo Shandel
Officiant
Danielle Kremeniuk
Female Cop
Sophia Daly
Baby Katelyn
Paul Moniz de Sa
Katelyn's Dad
Kayt Roth
Protestor
Jason Sakaki
Skinny Kid
Jeremy Arnold
Hazmat
Brahm Taylor
Hazmat #2
Amanda Gray
Hazmat Doctor #2 (uncredited)
Junnicia Lagoutin
Student