Amandla Stenberg as Ruby Daly

Harris Dickinson as Liam Stewart

Patrick Gibson as Clancy Gray

Skylan Brooks as Charles 'Chubs' Meriwether

Mandy Moore as Cate Connor

Miya Cech as Suzume

Mark O'Brien as Rob Meadows

Gwendoline Christie as Lady Jane

Grace DeAmicis as Grace Somerfield

Faye Foley as Sam Dahl

Wallace Langham as Dr. Viceroy

Golden Brooks as Molly Daly

Sammi Rotibi as Paul Daly

McCarrie McCausland as Mike

Logan Siu as Hayes

Ethan Alexander McGee as Teenage Boy

Lidya Jewett as Young Ruby Daly

Bradley Whitford as President Gray

Wade Williams as The Captain

Drew Scheid as Arguing Kid

Larkin Campbell as Hospital Father

Devon Sorvari as Hospital Mother

Peyton Wich as Hot-Headed Kid

Carson Holmes as Leader Kid

Déjá Dee as Wife

Morgan Gao as Young Boy

Izabella Dzmitryieu as Small Girl

Bruce Blackshear as Soldier

Berglind Jonsdottir as Lunch Lady

Catherine Dyer as Principal

Charles Green as Doctor

Allie McCulloch as Technician

Shannon Mosley as Secret Service Agent

Darren Alford as Mall Kid 1

Kaleigh Rivera as Mall Kid 2

Makenzie Collier as Campfire Dancer

Skyler Semien as Campfire Dancer

DeVyne Agapito as Campfire Dancer

Desi-Ray Morris as Campfire Dancer

Brooke Bowe as Campfire Dancer

Bernard Bell as Campfire Dancer

Alannah Wilhite as Campfire Dancer

Brennen Wiley as Campfire Dancer

Bryce Speaker as Campfire Dancer

Ahmed Zakzouk as Campfire Dancer

Cynne Simpson as Newscaster 1

Gino LaMont as Newscaster 2

John Crow as Newscaster 3

Gage Lawson as Teen Prisoner (uncredited)

Katie Hubbard as Slip Kid (uncredited)

Morgan Marie as Slip kid (uncredited)

Nate Seman as Army Kid (uncredited)

Camden Haydon as Slip Kid (uncredited)

Duncan E. Clark as Boy