 | Ethan Hawke als Bruce Kenner |
 | Emma Watson als Angela Gray |
 | David Thewlis als Professor Kenneth Raines |
 | Lothaire Bluteau als Reverend Beaumont |
 | Dale Dickey als Rose Gray |
 | David Dencik als John Gray |
 | Devon Bostick als Roy Gray |
 | Aaron Ashmore als George Nesbitt |
 | Peter MacNeill als Police Chief Cleveland |
 | Adam Butcher als Brody |
 | Jacob Neayem als Charlie Klemme |
 | Aaron Abrams als Farrell |
 | Catherine Disher als Kate |
 | Danielle Bourgon als Secretary at Police Station |
 | Julian Richings als Tom |
 | Kristian Bruun als Andrew |
 | Luke Marty als Officer |
 | Wendy Lyon als Norma |
 | Kaitlin Kocsis als Teenage Girl |
| Samantha Tenus als Teenage Girl |
| J.C. Kenny als TV News Anchor |
 | Maura Grierson als TV Reporter |
 | Patrick Garrow als TV Presenter |
 | Janet Porter als S. Cooper |
 | Pamela MacDonald als Woman with Grocery Cart |
 | Lenno Britos als Driver |
| Steve Whistance-Smith als Passenger (as Steven John Whistance Smith) |
 | Deborah Grover als Old Woman |
| Arlene Frattini als Naked Old Woman |
| Emily Haughton als Ms. Gray (Still) |
| Jessica Field als Angela at 10 years (Still) |
| Adam Gullusci als Roy at 14 years (Still) |
 | Adrian Griffin als Doctor |
| Kirk Gordon als Prison Guard |
 | Heidi Malley als Victim |
| Kate Stephey als Young Satanist Woman |
| Audrey Potter als Baby |
| Olivia Potter als Baby |
| Lauren Jenkins als Baby |
| Charley Jenkins als Baby |
| Nick Longo als Satanist |
| Lisa Horvath als Satanist |
 | Goran Stjepanovic als Satanist |
 | Carrie Eklund als Satanist |
 | Heather Lapine als Satanist |
 | James Preston Rogers als Satanist |
 | Stephen Hughes als TV Voice Over (voice) |
| Vanessa Spencer als Satanist (uncredited) |
| Noah Segura als Reverend Simmons (uncredited) |
| Attila Sebesy als Cult Member (uncredited) |
| Mackenzie Kerfoot als Praying Girl (uncredited) |
| Alli McLaren als Girl (uncredited) |
| Angelo Colavecchia | Camera Operator |
| Carolina Martínez Urbina | Editor |
| Friday Myers | Set Decoration |
| Jan Thijs | Still Photographer |
| Elinor Rose Galbraith | Art Direction |
| Bob Davidson | Gaffer |
| Alejandro Amenábar | Director |
| Alejandro Amenábar | Screenplay |
| Christina Piovesan | Producer |
| Alejandro Amenábar | Producer |
| Daniel Aranyó | Director of Photography |
| Jina Jay | Casting |
| Fernando Bovaira | Producer |
| Gabriel Gutiérrez | Sound Designer |
| Carol Spier | Production Design |
| Dave Bracken | Construction Coordinator |
| Jennifer Morden | Assistant Art Director |
| Charlotte Hayward | Makeup Artist |
| Paulino Fernández Ibáñez | Digital Intermediate |
| Joyce McPherson | Art Department Coordinator |
| Nestor Quintana | Visual Effects Producer |
| Jason Knight | Casting |
| Sonia Grande | Costume Design |
| Gabriel Gutiérrez | Supervising Sound Editor |
| Charlotte Hayward | Hairstylist |
| Helen Martí Donoghue | Visual Effects Producer |
| John Simpson | Foley |
| Mark Ahee | Special Effects Coordinator |
| Winnifred Jong | Script Supervisor |
| Wanda Morales | Assistant Costume Designer |
| Lindsay Allikas | First Assistant Editor |
| Ricardo Viñas | Dolby Consultant |
| Alfredo Díaz | Sound Effects Editor |
| Marc Orts | Sound Re-Recording Mixer |
| Emily McHugh | Assistant Costume Designer |
| Guillem Huertas | First Assistant Camera |
| Davin Snip | Property Master |
| Harvey Weinstein | Executive Producer |
| Bob Weinstein | Executive Producer |
| Iñaki Sánchez-Elvira | Dialogue Editor |
| Axel Kuschevatzky | Executive Producer |
| Shari Spier | Graphic Designer |
| Tapio Liukkonen | Foley Artist |
| Carrie Eklund | Stunts |
| Simón de Santiago | Executive Producer |
| Alex Lalonde | Executive Producer |
| Ghislain Barrois | Executive Producer |
| Noah Segal | Executive Producer |
| Koldo Zuazua | Line Producer |
| Derek Rappaport | Line Producer |
| Guillem Vidal-Folch | Associate Producer |
| Minda Johnson | Costume Design |
| Roque Baños | Original Music Composer |
| Roque Baños | Orchestrator |
| Roque Baños | Music Director |
| Geoff Ashenhurst | Editor |
| John Buchan | Casting |
| Derek Rappaport | Production Manager |
| Andrew M. Robinson | First Assistant Director |
| Aric Dupere | Second Assistant Director |
| Félix Bergés | Visual Effects Supervisor |
| Stephen Marian | Production Sound Mixer |
| Catherine Viot | Makeup Designer |
| Peggy Kyriakidou | Key Hairdresser |
| Eric Bryson | Stunt Coordinator |
| Neven Pajkic | Stunts |
| Ron Bell | Stunts |
| Robert Racki | Stunts |
| Duncan McLeod | Stunt Double |
| Geoff Meech | Stunt Double |
| Dylan Bryson | Stunt Double |
| Erin Jarvis | Stunt Double |
| Nick Lopez | Third Assistant Director |
| Mateo Gil | Script Consultant |
| Alejandro Hernández | Script Consultant |
| Effy Papadopoulos | Assistant Production Manager |
| Patricia Tejedor Cruz | Production Coordinator |
| Jackie Alexander Moulson | Production Coordinator |
| Richard Hughes | Location Manager |
| Drazen Baric | Assistant Location Manager |
| Mike Bruce | Assistant Location Manager |
| Luke Marshall | Assistant Location Manager |
| Evan Webber | First Assistant Art Direction |
| Shari Spier | Second Assistant Art Director |
| Liane Prevost | Second Assistant Art Director |
| Tyler Unrau | On Set Props |
| Adam Prince | Lead Set Dresser |
| Ron Gent | Lead Set Dresser |
| Joe Dias | Set Dresser |
| Adrienne Rennick | Set Dresser |
| Allan McNerney | Set Dresser |
| Michael Gibbs | Set Dresser |
| Danny Burke | Set Dresser |
| Angelo Colavecchia | Steadicam Operator |
| Gilles Corbeil | Additional Camera |
| Jason Luke | Second Assistant Camera |
| Michael Carella | "B" Camera Operator |
| Scott Cowan | First Assistant "B" Camera |
| Joseph Chan | Additional Camera |
| Bart Bialasik | Second Assistant "B" Camera |
| Stacey Dutrizac | Assistant Makeup Artist |
| Jenn Gould | Assistant Hairstylist |
| Mykola Korolyov | Daily Makeup & Hair |
| Cindy Lou Tache | Daily Makeup & Hair |
| Joanne Bujouves | Daily Makeup & Hair |
| Joan Chell | Daily Makeup & Hair |
| Urmas Rosin | Boom Operator |
| Ramesh Yogendran | Best Boy Electric |
| Michael Forrester | Electrician |
| Morgan Sainsbury | Electrician |
| Carl Flood | Electrician |
| Enrico Chiocchio | Generator Operator |
| Mike Sokoluk | Key Grip |
| Phil Calambakas | Best Boy Grip |
| Nicholas Fasullo | Dolly Grip |
| Kelly Pothof | Grip |
| Kristopher Pothof | Grip |
| Paul Cameron | Grip |
| Chris LeBlanc | Grip |
| Jason Herriott | Key Scenic Artist |
| Robert Iacobucci | Scenic Artist |
| Jeanette Nyguen | Scenic Artist |
| Jessie Frost | Casting Assistant |
| Caitlin Stewart | Casting Assistant |
| Donna Dupere | Extras Casting |
| Mayte Cabrera | Assistant Sound Editor |
| Gabriel Gutiérrez | Sound Re-Recording Mixer |
| Digba Kurpjel | Foley Editor |
| Lisa Simpson | Foley Recordist |
| Srdjan Kurpjel | Foley Recordist |
| Ignacio Arrojo | ADR Recordist |
| Nick Beljic | ADR Mixer |
| Ryan Michael Wilson | ADR Mixer |
| Darren T. Jennings | ADR Recordist |
| Rune Klaussen | ADR Recordist |
| Matthew McKenzie | ADR Engineer |
| Devin Doucette | ADR Engineer |
| Krissopher Chevannes | ADR Mixer |
