 | Stephen Baldwin als Rick Postley |
 | Gabrielle Anwar als Laura Dyson |
 | Tom Conti als Harry Rheinhartdt |
 | Chris Mulkey als Commander Kirsch |
 | Tony Plana als Lt. Commander Melges |
 | Joe Dain als Sonar Chief Fleck |
| Chris Taaffe als Lieutenant Hayes |
 | Kevin Connolly als Petty Officer Holliday |
| Eugene Williams als Lieutenant Weston |
| Matt Kennedy als Navigation |
| Paul Abbott als Ballast |
| Joel Traywick als Dive |
 | Michael Caradonna als Miller |
 | Doug McKeon als Chief of the Boat |
| Twirlee DeLite Dollison als Francis |
 | Nikki Cox als Holliday's Girlfriend |
| Joyce Brooks als Elise Weston |
| Courtney Gore als Weston's Daughter |
| Daniel Sladek als Gate Guard |
| Thambo Kasinathan als Sonar Assistant |
| Steve Darne als Sailor |
| Anthony Beselle als Sailor |
 | Cort Hessler als Sailor |
| Rolf Buegler | Underwater Camera |
| Shiro Gutzie | Music Supervisor |
| Stefano Mainetti | Original Music Composer |
| Cary Shott | Editor |
| Hiro Narita | Director of Photography |
| Jeffrey White | Producer |
| Tom Reeve | Executive Producer |
| Romain Schroeder | Executive Producer |
| Silvio Muraglia | Story |
| Daniel Sladek | Story |
| Howard Chesley | Story |
| Howard Chesley | Screenplay |
| Silvio Muraglia | Producer |
| Daniel Sladek | Producer |
| Alan Smithee | Director |
| Gregg Champion | Director |
| Rick Wiessenhaan | Stunts |
| Cort Hessler | Stunts |
| Stacy Courtney | Stunts |
| Tom Piskura | Associate Producer |
| Howard Chesley | Associate Producer |
| Stirling Belefant | Associate Producer |
| Cameron Jones | Associate Producer |
| Meinir Stoutt | Production Manager |
| Scott Metcalfe | First Assistant Director |
| Iseult Frere | Second Assistant Director |
| Peter Powis | Art Direction |
| Beck Taylor | Set Designer |
| David Hogan | Storyboard Artist |
| Elsemieke Meijer | Art Department Coordinator |
| Simon Bowles | Assistant Art Director |
| Ralph Eisenmann | Third Assistant Director |
| Claude de Bourcy | Third Assistant Director |
| Annie Simpson | Script Supervisor |
| Paul de Bourcy | Location Manager |
| Alessandro Bolognesi | Camera Operator |
| Alessandro Bolognesi | Steadicam Operator |
| Maurizio Cremisini | Focus Puller |
| Wolfgang Wesemann | Clapper Loader |
| Chantal Schaul | Camera Trainee |
| Marco Sticchi | Gaffer |
| Severino Tramontani | Best Boy Electric |
| Luciano Giuseppone | Key Grip |
| Jeremy Zimmermann | Casting Consultant |
| Lynne Polak | Casting Director |
| Chaz Prestidge | Set Dresser |
| Lisa Johnson | Costume Designer |
| David Whiteing | Wardrobe Supervisor |
| Klaus Lehofer | Wardrobe Supervisor |
| Vessna Kovacevic | Costumer |
| Elaine Colombana | Costumer |
| Vincenzo Mastrantonio | Makeup Designer |
| Mauro Tamagnini | Hair Supervisor |
| Vivian Nowak | Hairstylist |
| Cathy Folmer | Makeup Artist |
| John Rodda | Sound Recordist |
| Mike Reardon | Boom Operator |
| Harry Wiesenhaan | Special Effects Coordinator |
| Edward Wiesenhaan | Special Effects Technician |
| Rick Wiessenhaan | Special Effects Technician |
| Holger Wehrle | Animation |
| Ros Davidson | Production Coordinator |
| Bruce Malone | Still Photographer |
| Jeff Jensen | Second Unit Director |
| Cort Hessler | Second Unit First Assistant Director |
| Sheila McNaught | Script Supervisor |
| Roger Simonsz | Lighting Camera |
| Peter Field | Lighting Camera |
| Benny Ashoff | Assistant Camera |
| Maurizio Salvatori | Grip |
| Alex Aach | Clapper Loader |
| Rolf Buegler | Second Unit Director |
| Rolf Buegler | Camera Operator |
| Martin Gehbauer | Assistant Camera |
| Claus Henrich | Assistant Camera |
| Rob Weissenhaan | Pyrotechnician |
| Saar Klein | Additional Editing |
| Glenn Cocco | Assistant Editor |
| Andrew MacRitchie | Assistant Editor |
| Ian Differ | Assistant Editor |
| Pam Sharp | Assistant Editor |
| Russell Eaton | Assistant Editor |
| Andrew DeCristofaro | Supervising Sound Editor |
| Harry Cohen | Supervising Sound Editor |
| Tim Walston | Sound Effects Editor |
| Elisabeth Flaum | Sound Effects Editor |
| Jeffrey R. Whitcher | Sound Effects Editor |
| Ann Scibelli | Sound Effects Editor |
| Michael Kamper | Sound Effects Editor |
| Paul Curtis | Dialogue Editor |
| Frederick H. Stahly | Dialogue Editor |
| John C. Stuver | Dialogue Editor |
| Eric Thompson | ADR Mixer |
| Eric Thompson | Foley Mixer |
| Colin Rogers | ADR Recordist |
| Gregg Barbanell | Foley Artist |
| Laura Macias | Foley Artist |
| Vince Nicastro | Foley Artist |
| Jason Lezama | Foley Editor |
| Ken Teaney | Sound Re-Recording Mixer |
| Marshall Garlington | Sound Re-Recording Mixer |
| Juan Peralta | Sound Re-Recording Assistant |
| Marc Fishman | Sound Director |
| David Horner | ADR Mixer |
| Bruce Walters | Visual Effects Supervisor |
| Cam Eason | Creative Consultant |
| Jimmy Zelinger | Title Designer |
| Dale E. Grahn | Color Timer |
| Joshua Winget | Music Editor |
| Michael Hashimoto | Music Coordinator |
