<Dt> Jacob "Jake" Epping </Dt> <Dd> An English teacher at Lisbon Falls High School in Maine . Jake uses the alias of "George Amberson" to travel back to 1958, make his way to Texas, and track Lee Harvey Oswald's movements in the months leading up to the Kennedy assassination . Part of Jake's time is spent in Jodie, a small town on the outskirts of Dallas; there, he becomes an English teacher for a consolidated school and becomes well - liked by the students and faculty for his stage productions . Jake is eventually successful in foiling the assassination, but learns that doing so has set his 21st century world on a catastrophic path . </Dd> <Dd> The middle - aged proprietor of Al's Diner and long - time acquaintance of Jake . He shares the secret of his time portal, and his plan to prevent the assassination of John F. Kennedy, with Jake . His plan to do this himself has been thwarted by his cigarette smoking leading to terminal lung cancer . He motivates Jake to carry out his plan by committing suicide by overdosing on his pain medication . </Dd> <Dd> A janitor at Lisbon Falls High School and student in Jake's evening GED class . His submission of a paper about the night his father murdered his mother and siblings with a hammer, provides Jake with motivation and a test case to see if history can be changed . In Jake's second time thread, most of his family members are saved, but Harry serves in the Vietnam War and is killed in the Tet Offensive . In Jake's third time thread, Harry survives Vietnam, and as a result uses a wheelchair . He lives alone in a ruined Lisbon Falls . </Dd>

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