Biff Tannen is a fictional character from the Back to the Future film series, created by Robert Zemeckis and Bob Gale. He is portrayed as a bully and antagonist, primarily targeting Marty McFly and George McFly. Biff is known for his aggressive behavior and lack of intelligence, often relying on intimidation to get what he wants. In the films, Biff's character evolves through various timelines, showcasing different aspects of his personality. He is often seen driving a DeLorean or working at his family's auto detailing business. Biff's actions significantly impact the storylines, particularly in relation to the time travel elements of the series.