Cassiopeia "Cassie" Sullivan

Ben "Zombie" Parish

Oliver Sullivan

Lisa Sullivan

Evan Walker

Sergeant Reznik

Marika "Ringer" Kimura

Sammy "Nugget" Sullivan

Lieutenant Colonel Alexander Vosch

Dumbo

Allison / "Teacup"

Poundcake

Flintstone

Wounded Man with Crucifix

Lizbeth Morgan

Julia

Soccer Coach

TV News Anchor

White House Spokesman

Ms. Paulson

Jeremy

Teary School Kid

Hutchfield

Private Parker

Bullhorn Soldier

Confused Man

Armed Man

Soldier Calling Numbers

Exam Room Tech

Sniper in Woods

Kenny / "Oompa"

Tank

Helicopter Soldier

Situation Room Soldier

Tech Soldier

Major Bob

Captured Teen (uncredited)

Quarantine Victim (uncredited)

Dr. Osborne (uncredited)