 | Rachel Nichols als Angela Bridges |
 | Wes Bentley als Thomas |
 | Simon Reynolds als Bob Harper |
 | Philip Akin als Karl |
 | Miranda Edwards als Jody |
 | Paul Sun-Hyung Lee als Man in Elevator |
 | Grace Lynn Kung als Woman in Elevator |
 | Philip Williams als Cop #1 |
 | Arnold Pinnock als Cop #2 |
 | Bathsheba Garnett als Homeless Woman |
 | Franck Khalfoun als Newsman |
 | Stephanie Moore als Lorraine (voice) |
| Franck Khalfoun | Director |
| Alexandre Aja | Producer |
| Erik Feig | Producer |
| Grégory Levasseur | Producer |
| Patrick Wachsberger | Producer |
| Mark Bennett | Casting |
| Robin D. Cook | Casting |
| Ruth Secord | Costume Design |
| Maxime Alexandre | Director of Photography |
| Patrick McMahon | Editor |
| Andrew Hull | Art Direction |
| Oleg M. Savytski | Production Design |
| Liesl Deslauriers | Set Decoration |
| Etheline Joseph | Key Hair Stylist |
| Diane Mazur | Key Makeup Artist |
| Chi Fung | First Assistant Director |
| Jim Benton | Carpenter |
| Darcy Ellard | Carpenter |
| Bruce Graydon | Carpenter |
| Harry Kassardjian | Carpenter |
| Grant Kilroy | Carpenter |
| Takashi Komai | Carpenter |
| Alan Moy | Carpenter |
| Shane Wanstall | Carpenter |
| Jeff Flint | Carpenter |
| Ron Lightfoot | Construction Coordinator |
| Jeff Graydon | Head Carpenter |
| Ken Aziz | Painter |
| Neil Haines | Painter |
| David Kim | Painter |
| Enrique Patritti | Painter |
| Michael Zaharuk | Painter |
| James R. Murray | Property Master |
| Jerry Nicolaou | Second Assistant Art Director |
| David Maltese | Set Decoration Buyer |
| Graham Caswell | Set Designer |
| William Kucheran | Set Dresser |
| Cherie Spencer | Set Dresser |
| Andrea Dietrich | Storyboard Artist |
| Dennis Daigle | Best Boy Electric |
| Churchill Ross | Best Boy Grip |
| Paolo Perin | Best Boy Grip |
| Darren Spriet | Camera Loader |
| Brian Gedge | Camera Operator |
| David Perkins | Camera Operator |
| Chris Alexander | Camera Operator |
| Bart Bialasik | Camera Trainee |
| Johnny Wersta | Dolly Grip |
| Brent Marrale | Electrician |
| Ramesh Yogendran | Electrician |
| Robert Dias | Electrician |
| Kevin LeBlanc | First Assistant "A" Camera |
| Ernest Spiteri | First Assistant "B" Camera |
| Lem Ristsoo | First Assistant "C" Camera |
| Ira Cohen | Gaffer |
| Paul Michel | Gaffer |
| Yuri Sandler | Grip |
| Chris Wilson | Grip |
| Robin Lopes | Grip |
| Christopher J. Toudy | Key Grip |
| Blain Thrush | Second Assistant Camera |
| Steve Wilkie | Still Photographer |
| Eric Thompson | ADR Mixer |
| Jason Hopfner | Boom Operator |
| Gregg Barbanell | Foley Artist |
| Christopher Alba | Foley Editor |
| Lucy Sustar | Foley Mixer |
| David Hingorany | Sound Mix Technician |
| Rick Penn | Sound Mixer |
| Gabriel J. Serrano | Sound Recordist |
| Mark Larry | Supervising Sound Editor |
| Brock Jolliffe | Special Effects Coordinator |
| Geoff Hill | Special Effects Technician |
| Damon Bishop | Prosthetics |
| François Dagenais | Prosthetics |
| Christy Beckert | Digital Compositor |
| August Coleman | Digital Compositor |
| Chad Goei | Digital Compositor |
| Diana Hinek | Digital Compositor |
| Tim Vincent | Digital Intermediate Colorist |
| Laura LeFaivre | Visual Effects Producer |
| Jamison Scott Goei | Visual Effects Supervisor |
| Jamie Jones | Stunt Coordinator |
| Tom Farr | Stunt Coordinator |
| Robin Bigglestone | Assistant Costume Designer |
| Emerald Goldsmith | Casting Assistant |
| Brian Day | Assistant Editor |
| Harry Muller | Color Timer |
| Jeff Chaves | Colorist |
| Jeremy Pinard | Assistant Location Manager |
| Jorge Contreras | Location Assistant |
| Roger Lumyoung | Location Assistant |
| Thomas Vencelides | Location Manager |
| Dwight Mikkelsen | Conductor |
| Stephen Lotwis | Music Editor |
| Buck Damon | Music Supervisor |
| Richard Bronskill | Orchestrator |
| Jeffery Alan Jones | Orchestrator |
| Larry Rench | Orchestrator |
| Eddie Bowman | Transportation Coordinator |
| Steven 'Sparky' Carr | Transportation Captain |
| Darren Martin | Craft Service |
| Ashleigh Millar | Craft Service |
| David Kinnersly | Craft Service |
| Carla Spizziri | First Assistant Accountant |
| Pauline K. Quong | Payroll Accountant |
| Julie Hansen | Post Production Accountant |
| Kym Crepin | Production Accountant |
| Ryan Eldridge | Production Assistant |
| Will Taylor | Production Assistant |
| Dan Warry-Smith | Production Assistant |
| Cristin L. Cornett | Production Coordinator |
| Jill Carter | Script Supervisor |
| Lisa Shamata | Unit Publicist |
| Tom Hajdu | Music |
| Andy Milburn | Music |
| Chris David | Sound Re-Recording Mixer |
| Greg Copeland | Co-Producer |
| Greg Copeland | Production Manager |
| Franck Khalfoun | Screenplay |
| Alexandre Aja | Story |
| Alexandre Aja | Screenplay |
| Grégory Levasseur | Story |
| Grégory Levasseur | Screenplay |
| Andrew Matosich | Associate Producer |
| Bradley M. Goodman | Post Production Supervisor |
| Daniel J. Heffner | Co-Producer |
| Bob Hayward | Executive Producer |
| David Garrett | Executive Producer |
| Alix Taylor | Executive Producer |
| Andrea Isaacs | Executive In Charge Of Production |
| Mary Ann Stevens | Stunts |
| Cotton Mather | Stunts |
| Edward A. Queffelec | Stunts |
| Peter Yan | Stunts |
| Nathan Whitehead | First Assistant Sound Editor |
| Marshall Garlington | Sound Re-Recording Mixer |
| Travis MacKay | ADR Recordist |
| Leland Bond | Orchestrator |
| Andy Potvin | Dolby Consultant |
| Jennifer Markowitz | Casting Assistant |
