Chloë Grace Moretz
Cassiopeia "Cassie" Sullivan
Nick Robinson
Ben "Zombie" Parish
Ron Livingston
Oliver Sullivan
Maria Bello
Sergeant Reznik
Maika Monroe
Marika "Ringer" Kimura
Zackary Arthur
Sammy "Nugget" Sullivan
Liev Schreiber
Lieutenant Colonel Alexander Vosch
Talitha Eliana Bateman
Allison / "Teacup"
Matthew Zuk
Wounded Man with Crucifix
Gabriela Lopez
Lizbeth Morgan
David Maldonado
Soccer Coach
E. Roger Mitchell
White House Spokesman
Madison Staines
Teary School Kid
Derek Roberts
Private Parker
Geoffrey Kennedy
Bullhorn Soldier
Jim Sutton
Soldier Calling Numbers
Kevin L. Johnson
Sniper in Woods
Cade Canon Ball
Kenny / "Oompa"
Courtney Munch
Helicopter Soldier
Kendrick Cross
Situation Room Soldier
Chelsea Hayes
Tech Soldier
Olivia Cloer
Captured Teen (uncredited)
Kelly Róisín
Quarantine Victim (uncredited)
Johnny Otto
Dr. Osborne (uncredited)