| 角色 | 饰演者 | 角色介绍 |
| 戴维斯 | 道恩·强森 | |
| 凯特 | 娜奥米·哈里斯 | |
| 克莱尔 | 玛琳·阿克曼 | |
| 伯克 | 乔·曼根尼罗 | |
| 拉塞尔特工 | 杰弗里·迪恩·摩根 | |
| 乔治 | 杰森·莱尔斯 | |
| Amy | Breanne Everett | |
| Zammit | 马特·杰拉德   | |
| Zoo Girl | Destiny Lopez | |
| FBI Agent | Laura Distin | |
| Zoo Patron | Brian Kayode-Patri.. | |
| USAF Pilot /Tobias Denny | Matthew Ewald | |
| Kaplan | David An | |
| Officer King | Daniel Craig Baker | |
| Agent | David Dunston | |
| Zoo Visitor | Sierra Nicole Krug | |
| Rancher | Pete Burris | |
| Zoo Staff | Lexston Bearss | |
| Mercenary | Timothy Carr | |
| Teacher | Giota Trakas | |
| K9 Handler | Earl David Jones | |
| Communications Officer | Mac Wells | |
| Navy Officer | Michael Yuhl | |
| Radio Tech Operator | Allyssa Maurice | |
| Military Officer | Steven Dutton | |
| Zoo Visitor | Emalie Noel | |
| Kid | Chase Anderson | |
| Zoologist | Henardo Rodriguez | |
| Captain Evans | DJames Jones | |
| Scientist | Aurora Karine | |
| Special FBI Agent | Anthony Collins | |
| Hunter | Trent Bounds | |
| Captain Reynolds | Alan Boell | |
| Lab Technician | Tahseen Ghauri | |
| Mt. Rushmore Reporter | John Crow | |
| Zoo Kid | Jasmine Bolton | |
| Swat Team | John Gettier | |
| Swat Team | Jeff Baird | |
| National Guard | John D. Gordon | |
| Zoo Staff | Christopher Doss | |
| Private Drake Flynn | Kimberley Closson | |
| Mercenary | Brad Spiers | |
| Swat Team | Jason Gerrard | |
| Scientist | Terrance P. Carson | |
| Air Force Officer | Ben Belay | |
| Military Officer | Paul Ron Cruz | |
| Pedestrian | Connie Hollins | |
| Police Officer | Adam Mengerink | |
| Asian Tourist | Christine Albright | |
| Businessman | Freddy Moyano | |
| National Guard | Tevin Beech | |
| Lieutenant Colonel | Andrea Antonio Canal | |
| Zoo Guest | Emelita T. Gonzalez | |
| National Guardsman | Alex T Love | |
| Police Officer | Phil Madura | |
| Businessman | Shaun McMillan | |
| Army Soldier | Joel Nathaniel | |
| Zoo Visitor | Mason Pike | |
| School Teacher | Rekkhan | |
| DHS Agent | Travis Thompson | |
| DHS Agent | Tamica Wiley | |
| Calvin Mangum | Joey Thurmond | |
| Zoo Kid | Carleigh Johnston | |
| Zoo Employee | Anthony B. Harris | |
| Agent Park | 李威尹 | |
| Scuba Diver Girlfriend | Jessica Medina | |
| Mother | Valentina Latyna P.. | |
| Mercenary | 埃里克·伊恩 | |
| Kates Brother | Demetri Landell | |
| National Guard #2 | Perry Zulu Jr. | |
| Zookeeper | Van Marten | |
| Field Trip Student | Clifford Gay | |
| Co-Pilot | Suzanne Cotsakos | |
| Dad with Kids | Martin Feigen | |
| Pilot | Gregory Hoyt | |
| Zoo Kid | Camden Haydon | |
| Air Force Captain | Bernard Dowdell | |
| Private McClaine | Keith LeCreed Harris | |
| Poacher | Ibrahim Dumbuya | |
| Swat Officer | Jatone Smith | |
| National Guard | Aqeel Ash-Shakoor | |
| Marine SSG | Devon Mckelvin | |
| Fleeing Jogger | Valoria Robinson | |
| USAF Officer | Adam Lavender | |
| National Guard | Igor Burda | |
| US Military | Tony Comrie | |
| Corporate Security | Aaron Gillespie | |
| FBI | Timothy D. Montjoy | |
| Pedestrian | Rafaela Ochoa | |
| DHS Agent | 迪索·拉莫斯 | |
| Fleeing Tourist | Darren Sheehan | |
| Zoo Kid | Ethan Stormant | |
| Injured Civilian | Wes Weems |
