| John Lafia |
| Kim Delaney | Dr. Samantha Hill | |
| Beau Bridges | President Paul Hollister | |
| 弗兰克·朗格拉 | Dr. Earl Hill | |
| Melissa Sue Anderson | First Lady Megan Hollister | |
| 迪恩·凯恩 | Brad Malloy | |
| Oliver Hudson | Will Malloy | |
| Carly Pope | Laura Malloy | |
| David Cubitt | Dr. Jordan Fisher | |
| Tyrone Benskin | Jackson the Bartender | |
| Garcelle Beauvais | Natalie Warner | |
| Carlos Bernard | Dr. Miguel Garcia | |
| Glenda Braganza | Gina Green | |
| Tony Calabretta | (unconfirmed) | |
| Melissa Carter | Park Ranger | |
| 约翰·卡斯尼 | Sean Morris, Hollister's Aide | |
| Barbara Eve Harris | Stacy Warner, FEMA Director | |
| Tamara Hope | First Daughter Amy Hollister | |
| Anna Jaeger | Jenna | |
| Francis X. McCarthy | Al Roberts | |
| 彼德·奥德博拉治 | Alec Becker | |
| Meaghan Rath | Rachel | |
| Maurizio Terrazzano | Gonzalez | |
| Sean Tucker | Demo Team Leader | |
| Russell Yuen | Ian | |
| Brandon Blue | Rescuer (uncredited) | |
| 马克·卡马乔 | Russ the Poker Player | |
| Jesse Aaron Dwyre | Dr. Josh Nolan | |
| Daniel Tirado | Principal | |
| David Rigby | Five Star General (uncredited) | |
| Natalie Madison-Brown | Paula |
| John Lafia | (written by) |
| Howard Braunstein | executive producer | |
| Rustin J. Feldman | associate producer | |
| Michael Jaffe | executive producer | |
| John Lafia | co-executive producer | |
| Gary Pearl | executive producer | |
| Randi Richmond | producer |
| Henning Lohner |
| David Foreman |
| Michele Laliberte |
| Jocelyne Bellemare | key makeup artist | |
| Catherine Lavoie | assistant makeup artist | |
| Cecile Rigault | makeup artist | |
| Nathalie Trépanier | assistant makeup artist |
| Paolo Barzman | second unit director | |
| Marielou Bélisle-Pierre | third assistant director | |
| Stéphane Byl | assistant director | |
| Ray De Cotiis | second assistant director | |
| Sean Dwyer | first assistant director | |
| Angèle Gagnon | second assistant director: second unit |
| Carrie Foster | art department co-ordinator | |
| Brent Lambert | set designer | |
| Ronny Gosselin | model supervisor: Montreal | |
| Julie Montplaisir | art department |
| Kevin Belen | sound re-recording mixer | |
| Kris Casavant | assistant sound editor | |
| Jay Cheetham | background sound editor | |
| Dario DiSanto | foley editor | |
| Denys Dufresne | sound effects editor | |
| Daniel Fontaine-Bégin | adr recordist: Montreal | |
| Andre Iwanchuk | dialogue editor | |
| Kevin Konarzewski | walla recordist | |
| Louis Molinas | sound effects editor | |
| Iain Pattison | sound re-recording mixer | |
| Christian Rivest | sound effects editor | |
| Paul A. Sharpe | sound re-recording mixer | |
| Louis Collin | sound effects editor |
| Marc Bienvenu | special effects technician | |
| Gaspar Brabant | special effects technician | |
| Yvon Charbonneau | special effects technician | |
| Georges Chartrand | special effects technician | |
| Marc Chow | special effects assistant | |
| Pierre Cote | special effects technician | |
| Louis Craig | special effects supervisor | |
| Stéphane Dalpé | runner | |
| Jean-Martin Desmarais | special effects assistant | |
| Mario Dumont | crew chief | |
| André Essiembre | special effects assistant | |
| Michel Fortin | special effects assistant | |
| Nicolas Gauthier | special effects assistant | |
| Stephen Gilbert | special effects buyer | |
| Bernard Guay | runner | |
| André Laforest | special effects technician | |
| Jacques Langlois | pyrotechnician | |
| Denis Lavigne | special effects | |
| David Loveday | special effects technician | |
| Vincent Marion | special effects best boy | |
| Yves Martel | special effects assistant | |
| Louis Pedneault | special effects technician | |
| Violette A.-M. Soucisse | special effects assistant | |
| Michel Verdon | special effects technician | |
| Joe Viskocil | special effects |
| Martin Beaudoin | digital artist | |
| Jean-Pierre Boies | digital artist | |
| Marc Bourbonnais | lead technical director | |
| Xavier Bourque | digital compositor: Hybride Technologies | |
| Dany Brouillette | system administrator | |
| Michael Cozens | lead animator | |
| Marie-Cecile Dahan | visual effects producer: Meteor Studios | |
| Theo Diamantis | digital compositor | |
| Mathieu Dupuis | lead digital compositor | |
| Patrick Faille | digital artist | |
| Richard Flores | lead animator | |
| Vincent Fortin | visual effects: Meteor Studios | |
| Carl Gagnon | modeler | |
| Lucas Granito | senior lighting and texture artist: Hybride | |
| Sharon Smith Holley | visual effects editor | |
| Jean-Francois Houde | post production assistant: Hybride | |
| Lucas Janin | lead effects artist: Meteor Studios | |
| Jonathan Laborde | digital effects artist | |
| Bruno-Olivier Laflamme | digital effects artist | |
| Jean-Francois Lafleur | digital effects artist | |
| May Leung | effects animator: Hybride | |
| Richard Martin | visual effects supervisor | |
| Omar McClendon | lead character setup: Meteor Studios | |
| Dennis McHugh | visual effects director of photography | |
| Jamie Minett | lead lighter | |
| Juliette Mourez | digital compositing lead: Meteor Studios | |
| Jihyun Nam | visual effects | |
| Christophe Pacaud | digital compositor | |
| Jonathan Paquin | lead animator | |
| Benjamin Ribière | flame artist | |
| Laurent Spillemaecker | flame artist | |
| Sean Stranks | digital compositor: Hybride | |
| Duy Tran | modeler | |
| Robin Tremblay | lead matte painter | |
| Antonin Messier Turcotte | digital artist | |
| Francois Turcotte | lead modeller | |
| Pat Wakefield | digital compositor | |
| Derek Wentworth | visual effects supervisor: Meteor Studios | |
| Yanick Wilisky | computer graphics supervisor | |
| Anouk Deveault-Moreau | visual effects coordinator: Hybride | |
| Catherine Hébert | digital effects artist | |
| Etienne Laroche | digital effects artist | |
| Pierre-Simon Lebrun-Chaput | digital compositor | |
| Jocelyn Maher | digital compositor | |
| Guillaume Mainville | digital artist | |
| Carlos Monzon | digital compositor |
| Stéphane Byl | stunt performer | |
| Ruth Chiang | stunt performer | |
| Marc Désourdy | stunt coordinator | |
| Jere Gillis | stunts | |
| Normand Gobeille | stunt rigger | |
| Patrick Kerton | stunts | |
| Karine Lemieux | stunt performer | |
| France Raymond | stunt double | |
| Martin Williams | head stunt rigger |
| Lorne Balfe | composer: additional music | |
| Cassandra Barbour | rights and clearances | |
| Robert B. Baylis | key grip | |
| Robert Bruce Baylis | key grip | |
| Guillaume Beaudoin-Aubin | production assistant | |
| Maj. J. Todd Breasseale | technical advisor: military | |
| Todd Busch | additional editor | |
| Daniel Chretien Jr. | additional rigging electrician | |
| Jessica de Rooij | composer: additional music | |
| François Doré | police liaison: Surete du Quebec | |
| Yves Drapeau | first assistant camera | |
| Amelie Duceppe | second assistant camera: "b" camera | |
| Étienne Geoffrion | set technician | |
| Christian Halten | composer: additional music | |
| Sharon Smith Holley | first assistant editor | |
| Lynn Josephson | executive assistant to producer | |
| Lisa Knight | assistant to director and executive producer | |
| Andre-Pierre Lampron | best boy electric | |
| Patrice Lapointe | grip | |
| Martin Lebel | first assistant camera: "a" camera | |
| Daniel Matthews | transportation coordinator | |
| Brunhilde Pradier | dresser | |
| France Raymond | utility stand-in | |
| Dominique Ricard | camera operator: "b" camera | |
| Laura Sevier | rights and clearances | |
| Benoît Sévigny | gaffer | |
| John Trapman | camera operator: Wescam camera | |
| Marco Venditto | rigging gaffer | |
| Daniel Villeneuve | director of photography: second unit | |
| Kimi Webber | script supervisor | |
| Stephen Wells | dolly grip | |
| Victor Boutrous | production office coordinator: Los Angeles | |
| Laurent Gladu | assistant location manager | |
| Melanie Morin | extras payroll | |
| Atli Orvarsson | composer: additional music | |
| Milena Popovic | script supervisor: second unit | |
| Matthias Sayer | composer: additional music |