Davis Okoye
Dr. Kate Caldwell
Claire Wyden
Harvey Russell
Brett Wyden
Burke
Dr. Kerry Atkins
Nelson
Colonel Blake
Connor
Amy
Zammit
Agent Park
Garrick
Taylor
George
Communications Officer
Radar Officer
First MP
Second MP
Officer
C-17 Pilot
Captain Evans (as D. James Jones)
Police Captain
Kaplan
Commanding Officer
Pilot
Co-Pilot
Soldier with SAT Phone
Air Force Captain
HLN Reporter
San Diego Newscaster #1
San Diego Newscaster #2
San Diego Reporter
Reporter on the Ground
Local Chicago Reporter (as Andy Roesgen)
Mt. Rushmore Reporter
Zoo Reporter
Willis Tower Reporter
Female Gorilla 1
Female Gorilla 2
Kid (uncredited)
Swat Team (uncredited)
Officer King (uncredited)
Zoo Staff (uncredited)
Air Force Officer (uncredited)
Evacuating School Kid (uncredited)
Zoo Kid (uncredited)
National guard (uncredited)
USAF Officer (uncredited)
Rancher (uncredited)
Lieutenant Colonel (uncredited)
Mercenary (uncredited)
Scientist (uncredited)
Private Drake Flynn (uncredited)
Special FBI Agent (uncredited)
US Military (uncredited)
Military Officer (uncredited)
FBI Agent (uncredited)
Kate's Brother (uncredited)
Poacher (uncredited)
Agent (uncredited)
National Guardsman (uncredited)
USAF Pilot / Tobias Denny (uncredited)
Dad with Kids (uncredited)
Zoo Visitor (uncredited)
Pedestrian (uncredited)
Field Trip Student (uncredited)
Lab Technician (uncredited)
Zoo Employee (uncredited)
Private McClaine (uncredited)
National Guard (uncredited)
Zoo Patron (uncredited)
K9 Handler (uncredited)
Soldier (uncredited)
Mother (uncredited)
Zoo Girl (uncredited)
Police Officer (uncredited)
Officer Corwin (uncredited)
Zookeeper (uncredited)
Marine SSG (uncredited)
Businessman (uncredited)
Scuba Diver Girlfriend (uncredited)
Civilian (uncredited)
FBI (uncredited)
Pilot (uncredited)
Army Soldier (uncredited)
DHS Agent (uncredited)
School Teacher (uncredited)
Fleeing Jogger (uncredited)
Swat Officer (uncredited)
Aircrew (uncredited)
Calvin Mangum (uncredited)
Department of Homeland Security (uncredited)
Teacher (uncredited)
Injured Civilian (uncredited)
FBI Raid Agent (uncredited)
Navy Officer (uncredited)