 | Kiefer Sutherland als Ben Carson |
 | Paula Patton als Amy Carson |
 | Amy Smart als Angela Carson |
 | Jason Flemyng als Larry Byrne |
 | Cameron Boyce als Michael Carson |
 | Erica Gluck als Daisy Carson |
 | Ioana Abur als Front Desk Sister |
 | Mary Beth Peil als Anna Esseker |
 | John Shrapnel als Lorenzo Sapelli |
 | Tim Ahern als Dr. Morris |
 | Julian Glover als Robert Esseker |
 | Josh Cole als Gary Lewis |
 | Ezra Buzzington als Terrence Berry |
| Aida Doina als Rosa |
 | Darren Kent als Jimmy Esseker |
| Roz McCutcheon als Jimmy's Mother |
| Adina Rapiteanu als Young Anna |
 | William Meredith als Young Doctor |
| Bart Sidles als Police Inspector |
| Cai Man als Neighbor |
| Jingdong Qin als Neighbor |
| Anca Damacus als Burning Woman |
| Tudor Stroescu als Delivery Man |
| Liliana Donici als Mirror Person |
| Aurelia Radulescu als Mirror Person |
| George Dumitrescu als Mirror Person |
 | Irina Săulescu als Mirror Person |
| Valeriu Pavel als Mirror Person |
 | Greg Nicotero als Guy Playing Pool (uncredited) |
| Peter Sebastian Wrobel als Student (uncredited) |
| Alexandre Aja | Director |
| Maxime Alexandre | Director of Photography |
| Baxter | Editor |
| Javier Navarrete | Music |
| Alexandra Milchan | Producer |
| Tricia Wood | Casting |
| Grégory Levasseur | Producer |
| Ellen Mirojnick | Costume Design |
| Deborah Aquila | Casting |
| Jennifer L. Smith | Casting |
| Michael Dennison | Costume Design |
| Liz Griffiths | Set Decoration |
| Greg Nicotero | Special Effects Makeup Artist |
| Tom Bryan | Special Effects Technician |
| Donald Mowat | Makeup Artist |
| Lucian Iordache | Special Effects Technician |
| Noah Meddings | Special Effects Technician |
| Ovidiu Ursaru | Special Effects Technician |
| Jaremy Aiello | Special Effects Makeup Artist |
| Alistair Bell | Special Effects Technician |
| Russell Pritchett | Special Effects Technician |
| David Fogg | Visual Effects Supervisor |
| Marc Sternberg | Producer |
| Moritz von der Groeben | Supervising Producer |
| Akihito Ikeda | Makeup Effects |
| Marc S. Fischer | Executive Producer |
| Christopher Landry | Line Producer |
| Arnon Milchan | Executive Producer |
| Howard Berger | Special Effects Makeup Artist |
| Alan E. Lorimer | Special Effects Supervisor |
| Dirk Rogers | Special Effects Technician |
| Michael Dean Connolly | Visual Effects |
| Gino Crognale | Special Effects Makeup Artist |
| Simon Quinn | Special Effects Technician |
| Mark Vanstone | Special Effects Technician |
| Andrew Hong | Executive Producer |
| Gabi Cretan | Makeup Artist |
| Mandy Arnold | Digital Effects Supervisor |
| Stéphane Bidault | Visual Effects Supervisor |
| Vlad Păunescu | Producer |
| Andrei Zincă | Line Producer |
| Stephen Bream | Art Direction |
| Christopher Hayes | Special Effects Technician |
| Jason Troughton | Special Effects Supervisor |
| Harrison Marks | Visual Effects Coordinator |
| Michael Struk | Visual Effects Editor |
| Vlad Roseanu | Art Direction |
| Mircea Frenkel | Special Effects Technician |
| David Espinoza | Visual Effects |
| Ian Whittaker | Set Decoration |
| Robert Maverick | Key Makeup Artist |
| Joseph C. Nemec III | Production Design |
| Edi Balan | Special Effects Technician |
| Todd Carson | Compositor |
| Michael Early | Visual Effects Coordinator |
| Jeffrey Olney | Visual Effects |
| Kiefer Sutherland | Executive Producer |
| Tatjana Bozinovski | Compositor |
| Mike McCarty | Special Effects Makeup Artist |
| Daniel Brimer | Visual Effects Producer |
| Migs Rustia | Visual Effects Editor |
| Kim Sung-ho | Original Film Writer |
| Alexandre Aja | Screenplay |
| Grégory Levasseur | Screenplay |
