| Harrison Ford | Jack Ryan |
| Anne Archer | Cathy Muller Ryan |
| Patrick Bergin | Kevin O'Donnell |
| Sean Bean | Sean Miller |
| Thora Birch | Sally Ryan |
| James Fox | Lord Holmes |
| Samuel L. Jackson | Lt. Cmdr. Robert Jefferson 'Robby' Jackson |
| Polly Walker | Annette |
| J.E. Freeman | Marty Cantor |
| James Earl Jones | Adm. James Greer |
| Richard Harris | Paddy O'Neil |
| Alex Norton | Dennis Cooley |
| Hugh Fraser | Geoffrey Watkins |
When former CIA agent Jack Ryan hampers an IRA terrorist attack in London, he kills one of the terrorists. The dead man's brother, another member of the group named Sean Miller, is arrested but quickly escapes. Vowing revenge against Ryan, Miller travels to the United States, where he forces Ryan's wife and daughter into a car accident that badly injures them. This convinces Ryan to rejoin the CIA in order to track down Miller.
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