 | Ethan Hawke als James Sandin |
 | Lena Headey als Mary Sandin |
 | Max Burkholder als Charlie Sandin |
 | Adelaide Kane als Zoey Sandin |
 | Edwin Hodge als Bloody Stranger |
 | Rhys Wakefield als Polite Leader |
 | Tony Oller als Henry |
 | Arija Bareikis als Mrs. Grace Ferrin |
 | Tom Yi als Mr. Cali |
 | Chris Mulkey als Mr. Halverson |
 | Tisha French als Mrs. Halverson |
 | Dana Bunch als Mr. Ferrin |
 | Peter Gvozdas als Dr. Peter Buynak |
 | John Weselcouch als Freak Interrupting |
 | Alicia Vela-Bailey als Female Freak |
 | David Basila als George (uncredited) |
| Boima Blake als Freak #1 (uncredited) |
 | Nathan Clarkson als Freak (uncredited) |
| Jesse Jacobs als Freak #2 (uncredited) |
 | Mickey Facchinello als Brunette Female Freak (uncredited) |
 | Chester Lockhart als Freak (uncredited) |
 | Tyler Osterkamp als Freak (uncredited) |
| Rj Wolfe als Freak (uncredited) |
 | Aaron Kuban als Freak (uncredited) |
 | Karen Strassman als Newscaster (uncredited) |
 | Cindy Robinson als Purge Screen Announcer (uncredited) |
| Bradley Fuller | Producer |
| Jacques Jouffret | Director of Photography |
| Nathan Whitehead | Original Music Composer |
| Sebastien Lemercier | Producer |
| James DeMonaco | Director |
| Jason Blum | Producer |
| James DeMonaco | Writer |
| Andrew Form | Producer |
| Michael Bay | Producer |
| Peter Gvozdas | Editor |
| Melanie Jones | Production Design |
| Lisa Norcia | Costume Design |
| Jason Krane | Dialogue Editor |
| Daniel C. McFadden | Still Photographer |
| Karuna Karmarkar | Set Decoration |
| Nicolas Plotquin | Art Direction |
| Kevin O'Connell | Sound Supervisor |
| Edward Tise | Sound Mixer |
| Babette Stith | Script Supervisor |
| Lisa Fields | Casting |
| Kelly Cabral | Sound Supervisor |
| Robert Batha | Foley Editor |
| McJoel Hamilton | Property Master |
| Louis Normandin | Second Unit Director of Photography |
| Erin Oakley | Dialogue Editor |
| Alex Soto | Sound Effects Editor |
| Brian Armstrong | Supervising Sound Editor |
| Steve Schatz | Sound Re-Recording Mixer |
| Brian Armstrong | Sound Re-Recording Mixer |
| Paul J. Diller | Sound Effects Editor |
| Matt Kennedy | Still Photographer |
| Anna Behlmer | Sound Re-Recording Mixer |
| Craig Mann | Sound Re-Recording Mixer |
| Steven Morrow | Production Sound Mixer |
| Jordan Wilby | Sound Effects Editor |
| David Larson | Hair Department Head |
| William Hall | Key Grip |
| Nacoma Whobrey | Key Makeup Artist |
| Bobby Thomas | Key Grip |
| Gary Jones | Construction Foreman |
| Jeramey Rund | Art Department Production Assistant |
| Joel Tabbush | Art Department Coordinator |
| Robert 'Cass' McEntee | Construction Coordinator |
| Tim Dodge | Set Dresser |
| David Gottlieb | Electrician |
| Aaron J. Galang | Grip |
| Terrell Hasker | Grip |
| Elizabeth Rabe | Assistant Hairstylist |
| Hector Hernandez | Set Painter |
| Kenneth H. Wiatrak | Camera Operator |
| Kirk Graves | Assistant Property Master |
| Yuji Nakaza | Electrician |
| Patrick Rourk | Assistant Property Master |
| Jordan C. Kadovitz | Video Assist Operator |
| William Parker | Propmaker |
| Anthony Anderson | Gaffer |
| Darryl St. Juste | Grip |
| Annie Brandt | Art Department Production Assistant |
| David Carreira | Best Boy Electrician |
| Augy Plotquin | Construction Coordinator |
| Sean Ricigliano | Epk Camera Operator |
| Frank Orozco | Best Boy Grip |
| Paul Postal | Chief Lighting Technician |
| John Van Valkenburgh | Chief Lighting Technician |
| Jeremy Paul Cannon | Digital Imaging Technician |
| Ryan White | Electrician |
| David Lordan | Art Department Production Assistant |
| Steve Costanza | Makeup Department Head |
| Rhannon Dodge | Art Department Production Assistant |
| Joe Keawe III | Grip |
| Zak Faust | Art Department Coordinator |
| Hillel Chaim Smith | Property Master |
| Kay Quitan | Set Dresser |
| Mark Kalainoff | Set Painter |
| Eric Sandlin | Best Boy Electrician |
| Patrick Gomez | Best Boy Grip |
| Mark Rielly | Propmaker |
| Kyle Behling | Camera Production Assistant |
| John Thong Hoang Nguyen | Costumer |
| Anastasia Von Rahl | Visual Effects Coordinator |
| Sean Andrew Faden | Visual Effects Supervisor |
| Jeremy Lambert | Extras Casting Assistant |
| Mark Gullesserian | Special Effects Coordinator |
| Jim May | Additional Editor |
| Chelsea Kammeyer | Visual Effects Coordinator |
| John Barba | Casting Associate |
| Rich King | Extras Casting |
| Shannon Collis | Casting Associate |
| Aaron Becker | Main Title Designer |
| Regalia Thomas | Costumer |
| Micah Roehr | Special Effects Technician |
| Lauren Gauthier | Visual Effects Coordinator |
| Marty Taylor | Compositor |
| P. Whitney Gearin | Visual Effects Producer |
| Lawrence Decker | Special Effects Coordinator |
| Doug Passarelli | Pyrotechnician |
| Tommy Aagaard | Visual Effects Editor |
| Mike Chiado | Digital Intermediate |
| Tommy Aagaard | First Assistant Editor |
| Shane Harris | Colorist |
| Devin Sterling | Digital Intermediate |
| Giovanni DiGiorgio | Color Assistant |
| John Tripp | Color Assistant |
| Siggy Ferstl | Digital Intermediate Colorist |
| Kamila Baghernejad | Digital Intermediate Producer |
| Lorena Talpan | First Assistant Editor |
| Debra L. Tennant | First Assistant Editor |
| Scott MacDonald | Leadman |
| Jeanette Volturno | Co-Producer |
| Kaylene Carlson | Unit Production Manager |
| Gerard DiNardi | First Assistant Director |
| Kurt Bryant | Stunt Coordinator |
| Shanna Lynn | Stunt Double |
| Eugene Collier | Stunts |
| Jesse Jacobs | Stunts |
| Steve Kelso | Stunts |
| Gerard DiNardi | Line Producer |
| Jason Johnston | Boom Operator |
| James G. Brill | Transportation Coordinator |
| John Yarbrough | Transportation Captain |
| Sebastian Sheehan Visconti | Sound Designer |
| Nathan Hankins | Assistant Sound Editor |
| Tim Tuchrello | Assistant Sound Editor |
| Evan Daum | ADR Mixer |
| Alicia Stevenson | Foley Artist |
| Dawn Fintor | Foley Artist |
| Scott Curtis | Foley Mixer |
| Joe Cappelletti | ADR Voice Casting |
| Greg Vines | Music Editor |
| Sam Patton | Production Assistant |
| Jeffrey J. Dashnaw | Stunts |
