intelligence analyst, author, professor of Naval History at the United States Naval Academy.
- Badass Bookworm: Due in part to actually having been a Marine, though few are able to guess this without knowing his history.
- Badass Bureaucrat
- Cunning Linguist: Which he keeps to himself at first, until he laughs at something one of the officers says about Captain Mancuso having a gun strapped to his hip. When asked about his Russian ability, he replies that it is wise to study the ways of your enemy. To which Captain Ramius agrees, in English.
- Face Your Fears: Has a fear of flying, due to being in a helicopter crash early in his career. Through the course of the film, ends up flying on four occasions, each time worse than the last (turbulent airliner, small airplane in bad weather, helicopter in a seastorm lowering him on a cable down to a submarine before releasing himself from the cable and falling into the freezing waters to get aboard). The last flight, after he has saved the day, in contrast, has him sleeping peacefully with a teddy bear seated next to him.
- Good Parents: Save the world? Sure, that's important. But don't forget to get a teddy bear for your daughter on your way home.
- Happily Married
- Non-Idle Rich: Made enough money on the stockmarket to be immune to pressure when he gives an opinion.
- Semper Fi: Was originally a Marine
- The Smart Guy
- The Strategist
- Why Did It Have to Be Snakes?: Suffers from a fear of flying due to being in a helicopter crash while at the Navy Academy. Of course, ends up having to fly several times through the course of the plot, including a harrowing flight in a helicopter in storm-tossed seas where he drops himself from the chopper into the sea to get aboard the USS Dallas.
Captain Marko Aleksandrovich Ramius
Captain 1st Rank and Commanding Officer of the Red October.
Commander Bart Mancuso
Played by: Scott Glenn
Commanding Officer of the USS Dallas.
Ronald "Jonesy" Jones
Played by: Courtney Vance
Sonar Technician 2nd Class of the USS Dallas.
Captain Vasily Borodin
Captain 2nd Rank Executive Officer of the Red October.
Vice Admiral James Greer
Vice Admiral and CIA Deputy Director of Intelligence (DDI).
Captain Viktor Tupolev
Played by: Stellan Skarsgård
Captain 2nd Rank, Commanding Officer of the V.K. Konovalov.
Played by: Richard Jordan
National Security Advisor to the President of the United States.