 | Ryan Kwanten als Jamie Ashen |
 | Amber Valletta als Ella Ashen |
 | Donnie Wahlberg als Det. Lipton |
 | Bob Gunton als Edward Ashen |
 | Laura Regan als Lisa Ashen |
 | Michael Fairman als Henry Walker |
 | Joan Heney als Marion Walker |
 | Dmitry Chepovetsky als Richard Walker |
 | Judith Roberts als Mary Shaw |
 | Steve Adams als Police officer |
 | Keir Gilchrist als Young Henry |
 | Shelley Peterson als Lisa's Mom |
 | Steven Taylor als Michael Ashen |
| David Talbot als Priest |
 | Enn Reitel als Billy (voice) |
 | Julian Richings als Bos |
 | Fred Tatasciore als Clown (voice) |
| Austin Majors als Michael Ashen (voice, uncredited) |
| Oren Koules | Producer |
| Denise Cronenberg | Costume Design |
| Gregg Hoffman | Producer |
| Barbara Fiorentino | Casting |
| Rebecca Mangieri | Casting |
| Wendy Weidman | Casting |
| Mark Burg | Producer |
| James Wan | Writer |
| Julie Berghoff | Production Design |
| James Wan | Director |
| Leigh Whannell | Writer |
| Michael Olman | Sound Re-Recording Mixer |
| Dan Carnegie | Animation |
| Dennis Berardi | Visual Effects Producer |
| Michael Gibson | Still Photographer |
| Michael Tawton | Leadman |
| Dave Sheridan | Camera Operator |
| Tom Starnes | Rigging Gaffer |
| Michael N. Knue | Editor |
| Dan Norton | Set Designer |
| Kelly Cabral | Supervising Sound Editor |
| Fiona Campbell Westgate | Visual Effects Producer |
| Michael Galbraith | Gaffer |
| David F. Van Slyke | Sound Effects Editor |
| Robert C. Shannon | Underwater Camera |
| Christina Kuhnigk | Set Decoration |
| Melissa A. Corns | Sound Effects Editor |
| Kenneth Kobett | Sound Re-Recording Mixer |
| Michael Carella | Additional Photography |
| John Nicolard | Digital Intermediate |
| Anastasia Masaro | Art Direction |
| Randy Babajtis | Sound Designer |
| Shelley Cook | Stunt Coordinator |
| John Subotich | Leadman |
| Shawney Cohen | CG Supervisor |
| Derek Lang | Video Assist Operator |
| Richelle Wilks | Assistant Art Director |
| Darcy Reno | Systems Administrators & Support |
| Dennis Chapman | Production Manager |
| Lauren Stephens | Sound Designer |
| Jo-Ann MacNeil | Makeup Artist |
| Arlene Lott | Assistant Art Director |
| Kyle Yoneda | Animation |
| Robert Stecko | Camera Operator |
| Paulina Harcus | Hairstylist |
| Warren Appleby | Special Effects Coordinator |
| John R. Leonetti | Director of Photography |
| Aaron Weintraub | Visual Effects Supervisor |
| Karen Tyrell | Unit Publicist |
| Michael Tough | Location Manager |
| Mark Bensi | Music Editor |
| Aaron Marshall | First Assistant Editor |
| Carol Pears | Script Supervisor |
| Orest W. Muz | Transportation Coordinator |
| Mel Friedman | First Assistant Editor |
| Elaine Thurston | Production Accountant |
| Spencer Johnson | Sound Editor |
| Synderela Peng | Title Designer |
| Roman Alexander Buchok | Boom Operator |
| Garson Yu | Title Designer |
| Shawn London | Sound Editor |
| Al Vrkljan | Armorer |
| Gordon Brown | Painter |
| Brian Hanish | Boom Operator |
| Ron Yolevsky | Key Grip |
| Ron Renzetti | Dolly Grip |
| Charlie Clouser | Original Music Composer |
| Sarah Payan | Dialogue Editor |
| Scott G.G. Haller | Dialogue Editor |
| Richard Kitting | Foley Editor |
| Kenny Meinzinger | Property Master |
| Vic Radulich | Dialogue Editor |
| Paul Timothy Carden | Dialogue Editor |
| Peter Oillataguerre | Executive Producer |
| David R. Beecroft | Key Hair Stylist |
| Leslie A. Sebert | Makeup Department Head |
| Fina Khan | Assistant Hairstylist |
| François Dagenais | Prosthetic Designer |
| Andrew Shea | First Assistant Director |
| Sarah Campbell | Second Assistant Director |
| Toni Wong | Assistant Property Master |
| David Joseph Doblinger | Assistant Set Decoration |
| Sandor Mate | Carpenter |
| Goran Delic | Concept Artist |
| Arlene Savan | Set Dresser |
| Matt Wladyka | Set Dresser |
| Vickie Yolevsky | Set Dresser |
| Greg Chown | Storyboard Artist |
| Mark Hryma | Aerial Director of Photography |
| Jeff Petro | Assistant Camera |
| Mike Ohorodnyk | Best Boy Grip |
| Carlo Bellini | Camera Loader |
| Philip A. Giglio | Electrician |
| Rod MacNeil Jr. | Electrician |
| Herb Reischl Sr. | Electrician |
| Brent Robinson | First Assistant "A" Camera |
| Yvonne Collin | First Assistant "B" Camera |
| Andy Jekabsons | First Assistant "C" Camera |
| Dean Stinchcombe | First Assistant Camera |
| Michael Plant | Generator Operator |
| Neil Fraser | Grip |
| Brian E. Hill | Grip |
| Jason Klein | Grip |
| Samuel Turturici | Grip |
| Jim MacCammon | Lighting Technician |
| Beth Nobes | Second Assistant "B" Camera |
| Cylvan Desrouleaux | Second Assistant "C" Camera |
| Federico De Marco | Second Assistant Camera |
| Kim Porter | Truck Supervisor |
| Patricia Boulden | Assistant Costume Designer |
| Roland Heizinger | Tailor |
| Kristy Blackwell | Compositor |
| Michael Becki | Digital Compositor |
| Barb Benoit | Digital Compositor |
| Bonnie Dickson | Digital Compositor |
| Robert Greb | Digital Compositor |
| John J. Miralles | Digital Compositor |
| Rob Del Ciancio | Digital Compositor |
| Annu Gulati | Digital Compositor |
| Martin Mueller | Digital Compositor |
| John Daro | Digital Intermediate Editor |
| Benjamin Min Huang | VFX Lighting Artist |
| Cyril Frederick Chu | Matte Painter |
| Avi Salem | Rotoscoping Artist |
| Erik Charlebois | VFX Artist |
| Brianne Wells | Visual Effects Coordinator |
| Jeremy Balko | ADR Mixer |
| Mark DeSimone | ADR Mixer |
| Doc Kane | ADR Mixer |
| Eric Thompson | ADR Mixer |
| Jeanette Browning | ADR Recordist |
| Brian Dunlop | ADR Recordist |
| Robert Batha | Assistant Sound Editor |
| Brent Findley | Assistant Sound Editor |
| Shelley Roden | Foley Artist |
| Edward M. Steidele | Foley Artist |
| Jerry Trent | Foley Artist |
| Andrew Morgado | Foley Mixer |
| Chris Trent | Foley Mixer |
| Cody King | Sound Editor |
| Robert Carr | Sound Mix Technician |
| Douglas Ganton | Sound Mixer |
| Andrew Clarke-Meneguzzi | Special Effects Technician |
| Michael Innanen | Special Effects Technician |
| David Reaume | Special Effects Technician |
| Robin D. Cook | Casting |
| Lisa Baylin | Casting Assistant |
| Amber Horn | Casting Assistant |
| Samantha Finkler Brainerd | Casting Associate |
| Jane Rogers | Extras Casting |
| Charles Ryan | Assistant Editor |
| Alexandra Leviloff | Assistant Editor |
| Mila Patriki | Colorist |
| Bill Schultz | Digital Intermediate |
| Walter Volpatto | Digital Intermediate Colorist |
| Jim Lovisek | Animal Wrangler |
| Gerry Alfonso | First Assistant Accountant |
| Nick Kontsalakis | First Assistant Accountant |
| Lisa Vella | Producer's Assistant |
| Dave Tommasini | Pilot |
| Neil Floyd | Production Assistant |
| Gabrielle Nadeau | Production Assistant |
| Larry David Wilson | Production Assistant |
| Lori Pumputis | Production Coordinator |
| Kyle Kitagawa | Production Secretary |
| Kevin Alakas | Second Assistant Accountant |
| Dawn Howat | Second Assistant Accountant |
| Michael Stewart | Digital Compositor |
| Joanne Leach | Stunts |
