 | Kristen Connolly als Stephanie |
 | Will Rogers als Alex |
 | Michael Beasley als Officer Jimson |
 | Christopher Denham als Sam |
 | Kenny Alfonso als Doctor Michaels |
 | Kether Donohue als Donna Thompson |
 | Anthony Reynolds als Steve Slattery - Homeland Security Officer |
 | Frank Deal als Mayor Stockman |
 | Kimberly Campbell als Nurse Rebecca |
 | Lamya Jezek als Ms. Rosenblatt |
 | Lucia Scarano als Marla Spadafora |
 | Nansi Aluka als Jaquline |
 | Stephen Kunken als Dr. Abrams |
 | Beckett Clayton-Luce als Charles |
 | Dave Hager als Fisher Jerry |
| Tara Polhemus als Teenage Girl |
 | Stacy Rabon als Middle Age Woman |
 | Justin Welborn als Activist |
 | Jack Landry als Larry |
 | Robert C. Treveiler als Dr. Williams |
| Brandon Hanson als Cameraman Jim |
| Heidi Lawson als Nurse Jessica |
 | Jody Thompson als Officer Paul |
 | Andy Stahl als Sheriff Lee Roberts |
| Zoe Clarke als Little Girl at Party |
| Wyatt Hays als Little Boy at Party |
 | Brandon O'Dell als Bill |
 | John Harrington Bland als Man Attacking Dr. Abrams |
 | James Patrick Freetly als Bob - Fishing |
 | Alisa Harris als Mom at Fair |
| Truman Brothers als Tim |
 | Tim Parati als Fair Man |
| Bridget Gethins als Fat Lady |
| Sue Plassmann als Woman with Boils |
 | Tim Perez-Ross als Reporter - Brian |
 | Jane McNeill als Victim One |
| Anthony Reynolds als Homeland Security Officer |
 | Zach Hanner als EPA Staffer |
 | Rasool J'Han als Dr. Nu - CDC |
 | Troy Rudeseal als Man with Belly |
| Emmie Holmes | Costume Design |
| Steven Schneider | Producer |
| Jason Blum | Producer |
| Marcelo Zarvos | Original Music Composer |
| Barry Levinson | Director |
| Michael Wallach | Screenplay |
| Tracy Kilpatrick | Casting |
| Barry Levinson | Producer |
| Oren Peli | Producer |
| Josh Nussbaum | Director of Photography |
| Lee Bonner | Production Design |
| Stan Flint | Art Direction |
| Glenn Peison | Set Decoration |
| Aaron Yanes | Editor |
| Ellen Chenoweth | Casting |
| Starr Jones | Makeup Department Head |
| Cal Johnson | Stunt Coordinator |
| Brian Reali | Digital Intermediate |
| Ruth Hernandez | ADR & Dubbing |
| John Polyson | Visual Effects Editor |
| Mariusz Glabinski | Sound Re-Recording Mixer |
| Cal Johnson | Underwater Camera |
| Tim Starnes | Music Editor |
| David Thornsberry | Production Supervisor |
| Walter Kiesling | Special Effects Coordinator |
| Jay Peck | Foley |
| Marlena Grzaslewicz | Dialogue Editor |
| James G. Brill | Transportation Coordinator |
| Daniel Chavez | Visual Effects Producer |
| Karen Keyes | Set Costumer |
| Dominick Tavella | Sound Re-Recording Mixer |
| Erik Liles | Visual Effects Supervisor |
| Adam Jandrup | Gaffer |
| Bruce Resnik | Script Supervisor |
| David Thornsberry | Location Manager |
| Thomas Spence | Property Master |
| Mariusz Glabinski | Sound Designer |
| Reilly Steele | Sound Re-Recording Mixer |
| Liam O'Donnell | Visual Effects Producer |
| Marc-Eric Nielsen | Camera Operator |
| Mariusz Glabinski | Supervising Sound Editor |
| Jennifer Spence | Assistant Art Director |
| Dan Jones | First Assistant Camera |
| Benjamin Baggott | Lighting Technician |
| Randi Owens Arroyo | Hairstylist |
| Jacob Clegg | Lighting Technician |
| Jason Dunn | Lighting Technician |
| Shauna Brown | Second Assistant Camera |
| Urs Hirschbiegel | First Assistant Director |
| Matt Sanderson | First Assistant Camera |
| Adam Willis | Leadman |
| John David Reynolds | Chief Lighting Technician |
| Jonathan Cohen | Loader |
| Lee Donaldson | Key Grip |
| Mathew Larsen | Lighting Technician |
| Kristy Horiuchi | Key Makeup Artist |
| Brian Knox | Best Boy Grip |
| Katie Middleton | Makeup Artist |
| William 'Bill' Allanson II | Lighting Technician |
| Chrys Blackstone | Lighting Technician |
| Barret B. Burlage | Lighting Technician |
| Zsolt P. Haraszti | Second Assistant Camera |
| Paul Russo | Hair Department Head |
| Ray Flynn | Digital Imaging Technician |
| Miguel Palos | Thanks |
