| Sean Connery | Capt. Marko Ramius |
| Alec Baldwin | Jack Ryan |
| Scott Glenn | Cmdr. Bartolomeo Vito "Bart" Mancuso |
| Sam Neill | Capt. Second Rank Vasily Borodin |
| James Earl Jones | Adm. James Greer |
| Joss Ackland | Ambassador Andrei Lysenko |
| Richard Jordan | Dr. Jeffrey Pelt |
| Peter Firth | Capt. Second Rank Ivan Yurevich Putin |
| Tim Curry | Dr. Petrov |
| Courtney B. Vance | Sonarman 2nd Class Ronald Jones |
| Stellan Skarsgård | Capt. Tupolev |
| Jeffrey Jones | Oliver Wendell "Skip" Tyler |
| Timothy Carhart | Bill Steiner |
| Larry Ferguson | Chief of the Boat Watson - USS Dallas |
| Fred Dalton Thompson | RAdm. Joshua Painter |
| Daniel Davis | Capt. Charles Davenport - USS Enterprise |
| Ned Vaughn | Seaman Beaumont - USS Dallas |
| Anthony Peck | Lt. Cmdr. Thompson - USS Dallas |
| Mark Draxton | Seaman - USS Dallas |
| Tom Fisher | Seaman - USS Dallas |
| Pete Antico | Seaman - USS Dallas |
| Ronald Guttman | Lt. Melekhin - Red October |
| Tomas Arana | Igor Loginov |
| Michael George Benko | Ivan - Red October |
| Anatoli Davydov | Officer #1 - Red October |
| Ivan G'Vera | Officer #2 - Red October |
| Artur Cybulski | Yuri (diving officer) - Red October |
| Sven-Ole Thorsen | Russian Chief of the Boat - Red October |
| Michael Welden | Capt. Lt. Grigoriy Kamarov |
| Boris Lee Krutonog | Victor Slavin - Red October |
| Kenton Kovell | Seaman - Red October |
| Radu Gavor | Seaman - Red October |
| Ivan Ivanov | Seaman - Red October |
| Ping Wu | Seaman - Red October |
| Herman Sinitzyn | Seaman - Red October |
| Krzysztof Janczar | Andrei Bonovia |
| Vlado Benden | Seaman - Konovalov |
| George Saunders | Seaman - Konovalov |
| Don Oscar Smith | Helicopter pilot |
| Rick Ducommun | Navigator C-2A |
| George H. Billy | DSRV officer |
| Reed Popovich | Lt. Jim Curry |
| Andrew Divoff | Andrei Amalric - Konovalov |
| Peter Zinner | Adm. Yuri Ilyich Padorin |
| Tony Veneto | Padorin's orderly |
| Ben Hartigan | Admiral at briefing |
| Ray Reinhardt | CIA Director Judge Arthur Moore |
| F.J. O'Neil | General at briefing |
| Robert Buckingham | Admiral #2 at briefing |
| A.C. Lyles | Advisor #1 |
| John McTiernan Sr | .Advisor #2 |
| David Sederholm | Sunglasses |
| John Shepherd | Foxtrot pilot |
| William Bell Sullivan | Lt. Cmdr. Mike Hewitt |
| Gates McFadden | Caroline Ryan |
| Louise Borras | Sally Ryan |
| Denise E. James | Stewardess |
