When a nuclear attack submarine crashes on the floor of the Artic ocean, it's up to a pair of research scientists to save the entire crew before time and oxygen run out.
| Actor | Role |
|---|---|
 Stephen BaldwinRick Postley | Rick Postley |
 Gabrielle AnwarLaura Dyson | Laura Dyson |
 Tom ContiHarry Rheinhartdt | Harry Rheinhartdt |
 Chris MulkeyCommander Kirsch | Commander Kirsch |
 Tony PlanaLt. Commander Melges | Lt. Commander Melges |
 Joe DainSonar Chief Fleck | Sonar Chief Fleck |
| CChris TaaffeLieutenant Hayes | Lieutenant Hayes |
 Kevin ConnollyPetty Officer Holliday | Petty Officer Holliday |
| EEugene WilliamsLieutenant Weston | Lieutenant Weston |
| MMatt KennedyNavigation | Navigation |
| PPaul AbbottBallast | Ballast |
| JJoel TraywickDive | Dive |
 Michael CaradonnaMiller | Miller |
 Doug McKeonChief of the Boat | Chief of the Boat |
| TTwirlee DeLite DollisonFrancis | Francis |
 Nikki CoxHolliday's Girlfriend | Holliday's Girlfriend |
| JJoyce BrooksElise Weston | Elise Weston |
| CCourtney GoreWeston's Daughter | Weston's Daughter |
| DDaniel SladekGate Guard | Gate Guard |
| TThambo KasinathanSonar Assistant | Sonar Assistant |
| SSteve DarneSailor | Sailor |
| AAnthony BeselleSailor | Sailor |
 Cort HesslerSailor | Sailor |