| Gerard Butler | Captain Joe Glass |
| Gary Oldman | CJCS Charles Donnegan |
| Common | RA John Fisk |
| Linda Cardellini | Jayne Norquist |
| Toby Stephens | Bill Beaman |
| Michael Nyqvist | Captain Andropov |
| Ryan McPartlin | Matt Johnstone |
| Ethan Baird | Sonar 3 |
| Jacob Scipio | Sonar 2 |
| Dempsey Bovell | Sonar 1 |
| Adam James | Captain Forbes |
| Henry Goodman | Senator from Ilinois |
| Colin Stinton | Senator from Iowa |
| Carter MacIntyre | XO Brian Edwards |
| Shane Taylor | TMC Turner |
| Kola Bokinni | McCaw |
| Mikey Collins | Brickowski |
| Will Attenborough | Kaplan |
| Kieron Bimpson | Nichols |
| David Gyasi | Cob Wallach |
| Michael Jibson | Reed |
| Christopher Goh | Park |
| Brian Kinney | Officer on the Deck |
| Sarah Middleton | Liddy |
| Taylor John Smith | Belford |
| Gabriel Chavarria | Jimenez |
| Cosmo Jarvis | Fathometer Operator |
| Michael Trucco | Devin Hall |
| Zane Holtz | Paul Martinelli |
| Alexander Diachenko | President Zakarin |
| Yuri Kolokolnikov | Oleg |
| Michael Gor | Admiral Dmitri Durov |
| Igor Jijikine | Tretiak |
| Ilia Volok | Captain Vlade Sutrev |
| Hristo Mitzkov | Volkov Sonarman |
| Stefan Nikolaev Ivanov | Volkov Captain |
| Caroline Goodall | President Dover |
| David Yelland | SECDEF |
| Stuart Milligan | Secretary of State |
| Theo Barklem-Biggs | Seaman Mackinnon |
| Atanas Srebrev | Russian Lt. Commander |
| Bernardo Santos | Andropov Guard Gomez |
| Matt Rippy | Actor |
| Charlotte Dunnico | Girl |
| Halima Nagori | Senator in Whitehouse |
| Kyle James | Voice Only |
| Nathan Cooper | Mess Crew |
| Debra Tammer | Colonel Lieutenant |
| Michael Hoad | Submarine Guard |
| Jason Matthewson | Budd |
| Jake Mann | Sonar Operator |
| John Whitby | Chief of Staff's Aide |
| Dino Fazzani | Andropov Guard |
| Nadia Townsend | Pentagon Staff |
| Solomon Taiwo Justified | Pentagon Staff |
| Paul A. Munday | Dock Worker |
| Lee Asquith-Coe | Lt. Cmdr Schumacher |
| Stephen McDade | Pub Landlord |
| Jason Newell | Murden |
| Stephanie Pezolano | Pentagon Staff (White House Aid) |
| Bradley Crees | McKittrick |
| Vitas LeBas | Submarine Sonar #6 |
| Niall D. O'Loughlin | Naval Lieutenant |
| Richard Hills | Medic Jones |
| Charlie Oginni | Lombardi |
| Michael On | T-Silver |
| Dor Yerushalmi | Mess Hall Officer |
| Robert-Anthony Artlett | N. Owens |
| Joseph Allen | Submarine Extra #2 |
| Fleur Rochelle Hawken | Waitress |
Technical Credits
| Donovan Marsh | Director |
| Adam Baker | Animator |
| Selena Arizanovic | Musical Direction/Supervision |
| Gary Baugh | Art Director |
| Tom Boney | Stunts |
| Ben Burt | Asst. Director |
| Gerard Butler | Producer |
| Christa Campbell | Executive Producer |
| Peter Craig | Screenwriter |
| Boaz Davidson | Executive Producer |
| Alba Rodriguez delRio | Animator |
| Hristo Dimitrov | Asst. Director |
| Borislav Dimitrov | Animator |
| Pam Dixon | Casting |
| Michael J. Duthie | Editor |
| Luke Gentry | Sound/Sound Designer |
| Mark Gill | Producer |
| Elaine Grainger | Casting |
| Jeffrey Greenstein | Executive Producer |
| Lati Grobman | Executive Producer |
| Michael Halley | Animator |
| Ken Halsband | Executive Producer |
| Caroline Harris | Costumes/Costume Designer |
| Jon Henson | Production Designer |
| Toby Jaffe | Producer |
| Ivo Jivkov | Special Effects Supervisor |
| Vladimir Kaloyanov | Sound Mixer |
| Alexey Karaghiaur | Art Director |
| Daniel Kaslow | Associate Producer |
| Ryan Kavanaugh | Executive Producer |
| Kevin King | Executive Producer |
| Kevin King-Templeton | Executive Producer |
| Yariv Lerner | Executive Producer |
| Avi Lerner | Executive Producer |
| Tom Marais | Cinematographer |
| Gisella Marengo | Co-producer |
| Heidi Jo Markel | Executive Producer |
| Anne McCarthy | Casting |
| Elena Melamed | Production Manager |
| Yosif Mladenov | Set Decoration/Design |
| John Moredock | Set Decoration/Design |
| Neal H. Moritz | Producer |
| Trevor Morris | Score Composer |
| Jamie Moss | Screenwriter |
| Andrew Munro | Art Director |
| Ryan Nowak | Sound/Sound Designer |
| Matthew O'Toole | Producer |
| Christine Otal | Executive Producer |
| Stefano Pepin | Special Effects Supervisor |
| Chris Peters | Art Director |
| Lyubomir Petrov | Special Effects |
| Ivan Ranghelov | Art Director |
| Danielle Robinson | Co-producer |
| Kellie Roy | Casting |
| Arne Schmidt | Executive Producer,Screenwriter |
| Trevor Short | Executive Producer |
| Alan Siegel | Producer |
| James Spencer | Production Designer |
| Marianne Stanicheva | Casting |
| Maria Stankovich | Makeup |
| John Thompson | Producer |
| Tucker Tooley | Producer |
| Douglas Urbanski | Executive Producer |
| Les Weldon | Producer |
