Chloë Grace Moretz character Cassiopeia "Cassie" Sullivan
Liev Schreiber character Lieutenant Colonel Alexander Vosch
Maika Monroe character Marika "Ringer" Kimura
Maria Bello character Sergeant Reznik
Alex Roe character Evan Walker
Talitha Bateman character Allison / "Teacup"
Courtney Munch character Helicopter Soldier
Michael Beasley character Major Bob
Nick Robinson character Ben "Zombie" Parish
Zackary Arthur character Sammy "Nugget" Sullivan
Maggie Siff character Lisa Sullivan
Ron Livingston character Oliver Sullivan
Tony Revolori character Dumbo
Cade Canon Ball character Kenny / "Oompa"
Flynn McHugh character Tank
Alex MacNicoll character Flintstone
Nadji Jeter character Poundcake
Gabriela Lopez character Lizbeth Morgan
Bailey Anne Borders character Julia
Parker Wierling character Jeremy
Terry Serpico character Hutchfield
Charmin Lee character Ms. Paulson
Matthew Zuk character Wounded Man with Crucifix
David Maldonado character Soccer Coach
Paul Ryden character TV News Anchor
E. Roger Mitchell character White House Spokesman
Derek Roberts character Private Parker
Geoffrey Kennedy character Bullhorn Soldier
Devin McGee character Confused Man
Adora Dei character Exam Room Tech
Kevin L. Johnson character Sniper in Woods
Kendrick Cross character Situation Room Soldier
Chelsea Hayes character Tech Soldier
Olivia Cloer character Captured Teen (uncredited)
Kelly Róisín character Quarantine Victim (uncredited)
