List of Back to the Future characters - Wikipedia
Kid Tannen is Biff's father who only appears in the Back to the Future game. Kid is a gangster who runs a local speakeasy in the 1930s Hill Valley. He, like the rest of the Tannen family, bullies the McFly family forcing Marty's grandfather Arthur to do his accounting. Kid is brought down with the help of Marty, a young version of Doc, and Arthur McFly. He later marries Edna Strickland and reforms from his criminal ways with her help.
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