 Sean ConneryCapt. 1st Marko Ramius | Capt. 1st Marko Ramius |
 Alec BaldwinDr. Jack Ryan | Dr. Jack Ryan |
 Scott GlennCDR Bart Mancuso (USS Dallas) | CDR Bart Mancuso (USS Dallas) |
 Sam NeillCapt. 2nd Vasily Borodin | Capt. 2nd Vasily Borodin |
 James Earl JonesVice ADM James Greer | Vice ADM James Greer |
 Joss AcklandAmbassador Andrei Lysenko | Ambassador Andrei Lysenko |
 Richard JordanDr. Jeffrey Pelt, National Security Advisor | Dr. Jeffrey Pelt, National Security Advisor |
 Peter FirthCapt. 2nd Ivan Putin (Political Officer, Red October) | Capt. 2nd Ivan Putin (Political Officer, Red October) |
 Tim CurryDr. Yevgeni Petrov (Red October) | Dr. Yevgeni Petrov (Red October) |
 Courtney B. VancePetty Officer Ronald 'Jonesy' Jones (USS Dallas) | Petty Officer Ronald 'Jonesy' Jones (USS Dallas) |
 Stellan SkarsgårdCapt. 2nd Viktor Tupolev (V.K. Konovalov) | Capt. 2nd Viktor Tupolev (V.K. Konovalov) |
 Jeffrey JonesSkip Tyler | Skip Tyler |
 Fred ThompsonRear ADM Joshua Painter (Enterprise Carrier Battle Group) | Rear ADM Joshua Painter (Enterprise Carrier Battle Group) |
 Timothy CarhartBill Steiner | Bill Steiner |
 Larry FergusonChief of the Boat (USS Dallas) | Chief of the Boat (USS Dallas) |
 Daniel DavisCPT Charlie Davenport (USS Enterprise) | CPT Charlie Davenport (USS Enterprise) |
 Tomas AranaIgor Loginov (Cook, Red October) | Igor Loginov (Cook, Red October) |
 Anatoli DavydovOfficer #1 (Red October) | Officer #1 (Red October) |
 Rick DucommunNavigator C-2A | Navigator C-2A |
 Ronald GuttmanLt. Alexander Melekhin (Red October) | Lt. Alexander Melekhin (Red October) |
 Krzysztof JanczarAndrei Bonovia (V.K. Konovalov) | Andrei Bonovia (V.K. Konovalov) |
 Anthony PeckLt. CDR Philip Thompson (USS Dallas) | Lt. CDR Philip Thompson (USS Dallas) |
 Ned VaughnSeaman Beaumont (USS Dallas) | Seaman Beaumont (USS Dallas) |
 Mark DraxtonSeaman (USS Dallas) | Seaman (USS Dallas) |
 Tom FisherSeaman (USS Dallas) | Seaman (USS Dallas) |
 Pete AnticoSeaman (USS Dallas) | Seaman (USS Dallas) |
| MMichael George BenkoIvan (Red October) | Ivan (Red October) |
 Ivan G'VeraOfficer #2 (Red October) | Officer #2 (Red October) |
| AArtur CybulskiDiving Officer (Red October) | Diving Officer (Red October) |
 Sven-Ole ThorsenRussian COB (Red October) | Russian COB (Red October) |
