 | Brenton Thwaites als Chris |
 | Theo Rossi als Kirk |
 | Skylar Astin als Eugene |
 | Kyle Gallner als Tappert |
 | Alan Ritchson als Butchie |
 | Billy Zane als Dr. Engel |
 | Shaun Toub als Mr. Helwig |
 | Matthew Reese als Sergeant Elks |
 | Laila Banki als Mrs. Helwig |
 | Shannon McKain als Lieutenant Morgan |
 | Nathan Cooper als Private #1 |
 | Alexander Behrang Keshtkar als Leader |
| Yanitsa Mihailova als Christina |
 | Rebecca Flinn-White |
| Kaloyan Hristov als Helwig Boy |
 | Amber Townsend als Camp Victim |
| Alexandra Spasova als Famished Mother |
| Eric Bress | Director |
| Eric Bress | Screenplay |
| Peter Amundson | Editor |
| Shelley Madison | Producer |
| D. Todd Shepherd | Producer |
| Joe Simpson | Producer |
| Michael Suby | Music |
| Lorenzo Senatore | Director of Photography |
| Brandon Henry Rodriguez | Casting |
| Ivan Ranghelov | Art Direction |
| Antonello Rubino | Production Design |
| Irina Kotcheva | Costume Design |
| Nelly Teova | Key Hair Stylist |
| Tatyana 'Tita' Sleptsova | Makeup Artist |
| Maria Stankovich | Makeup Artist |
| Anna Andreeva | Makeup Department Head |
| Mark Roper | First Assistant Director |
| Anna Hadzhieva | Art Department Coordinator |
| Jovana Krstić | Assistant Art Director |
| Dora Somova | Assistant Set Decoration |
| Evgeni Yordanov | Construction Manager |
| Peter Rakovski | Property Master |
| Yossif Mladenov | Set Designer |
| Martin Genchev | Set Dresser |
| Yasen Denev | Storyboard Artist |
| Desislav Dimitrov | Best Boy Grip |
| Geo Ivanov | Camera Operator |
| Ivaylo Ivanov | Camera Operator |
| Veselin Dimchov Hristov | Camera Trainee |
| Sandro Magliano | Digital Imaging Technician |
| Iva Slavova | Drone Cinematographer |
| Dimitar Krustev | Drone Pilot |
| Konstantin Bodurov | Electrician |
| Sasho Idakiev | Electrician |
| Sergey Zhelezko | Epk Camera Operator |
| Paula Nenova | First Assistant Camera |
| Emiliano Topai | First Assistant "A" Camera |
| Hristo Idakiev | Gaffer |
| Georgi Petkov | Key Grip |
| Atanas Stoyanov | Key Rigging Grip |
| Albert Nikolinski | Rigging Grip |
| Petar Stoianov | Rigging Grip |
| Dimitar Liubomirov Petrov Zeiss | Rigging Grip |
| Konstantin Vasilev | Second Assistant Camera |
| Ivan Vatsov | Second Unit Director of Photography |
| Stefania Velichkova | Script Supervisor |
| Milena Mihaylova | Script Supervisor |
| Vladislav Todorov | Ager/Dyer |
| Velemira Petkova | Costume Supervisor |
| Yana Sheremetova | Costumer |
| Marieta Duncheva | Seamstress |
| Georgi Petrov Yakimov | Set Costumer |
| Fabrizio Amoroso | CG Artist |
| Corrado Borean | CG Artist |
| Matteo Bozzolan | CG Artist |
| Lorenzo dal Pra | CG Artist |
| Vittoria Marini | CG Artist |
| Gabriele Natali | CG Artist |
| Matteo Toffanello | CG Supervisor |
| Swati Kumbhar | Compositor |
| Valentina Lucano | Compositor |
| Davide Tubaro | Compositor |
| Dario Bonito | Digital Compositor |
| Marco Nella | Digital Compositor |
| Alessandro Tagliabue | Digital Compositor |
| Michele Zelioli | Digital Compositor |
| Roopesh Gujar | Visual Effects Producer |
| Rajeev Kumar Rastogi | Visual Effects Producer |
| Heather Toll | Visual Effects Producer |
| Alessandro Orlati | Visual Effects Producer |
| Franco Valenziano | Visual Effects Producer |
| Shirley Luong | Visual Effects Producer |
| William E. Garrett | Visual Effects Supervisor |
| Amit Malviya | Visual Effects Supervisor |
| Sachin Satpute | Visual Effects Supervisor |
| Massimiliano Pareschi | Visual Effects Supervisor |
| Svetozar Karatanchev | Special Effects Supervisor |
| Russell Johnson | ADR Recordist |
| Will Morton | ADR Recordist |
| Petar Cvetanov Kadiyski | Boom Operator |
| Brian Berger | Dialogue Editor |
| Lawrence He | Foley Artist |
| Elizabeth Amoroso | Foley Recordist |
| Eric Offin | Sound Designer |
| Taylor Westerfield | Sound Effects Editor |
| Emil Evtimov | Sound Mixer |
| Jonathan Wales | Sound Re-Recording Mixer |
| Susan Boyajian | ADR Voice Casting |
| Rumyana Popova | Casting Assistant |
| Briana Frapart | Casting Associate |
| Hrista Ilieva | Extras Casting |
| Marianne Stanicheva | Local Casting |
| Katerina Atanasova | Second Assistant Director |
| William E. Garrett | Second Unit Director |
| Kevin Greutert | Additional Editor |
| Nina Lucia | Additional Editor |
| Ivan Todorov Ivanov | Assistant Editor |
| Zhelyazko Zhelyazkov | Assistant Editor |
| C. Ryan Stemple | Colorist |
| Mark Sachen | Digital Intermediate Colorist |
| Petia Petrova | Assistant Production Coordinator |
| Lily Lacheva | Production Accountant |
| George Sweney | Production Accountant |
| Vladimir Vladovski | Production Assistant |
| Stasi Petrova | Production Coordinator |
| Toni Lalov | Transportation Coordinator |
| Kaloian Vodenicharov | Stunt Coordinator |
| Radoslav Ignatov | Stunt Double |
| Alexander Stanoev | Stunt Double |
| Iliva Zaikov | Special Effects Assistant |
| Georgi Lozanov | Special Effects Technician |
| Ivaylo Nalbantov | Special Effects Technician |
| Ivan Kotsev | Second Unit First Assistant Director |
| Petkova Evdokia | Third Assistant Director |
| Billy Zane | Executive Producer |
| Colleen Camp | Executive Producer |
| Andrew Mann | Executive Producer |
| Alastair Burlingham | Executive Producer |
| Charlie Dombek | Executive Producer |
| Jonathan Bross | Executive Producer |
| Adrian Jayasinha | Executive Producer |
| Simon Williams | Executive Producer |
| Hiroshi Mikitani | Executive Producer |
| Matthew Reese | Executive Producer |
| Arianne Fraser | Executive Producer |
| Delphine Perrier | Executive Producer |
| Henry Winterstern | Executive Producer |
| J. E. Moore | Co-Producer |
| Sufo Evtimov | Unit Production Manager |
| Alana Crow | Co-Executive Producer |
| Max Lukach | Associate Producer |
