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Biff Tannen is a character in the Back to the Future trilogy, serving as the primary antagonist of the first two films. He is played by Thomas F. Wilson in all three films as well as the ride, and Wilson voiced the character in the animated series.
Early life
In all of the timelines depicted in the film, Biff was born on March 26, 1937, in Hill Valley, California. He is the great-grandson of Buford "Mad Dog" Tannen and the grandfather of Griff Tannen (although it isn't specified in the movie that Griff's last name was actually Tannen, to which Griff could have been the offspring of Biff's daughter, instead of son). He is not very bright and only got through high school by bullying George McFly to do his homework for him. Biff is feared by most of his schoolmates. He is less brave when he is without his gang (Match, Skinhead, and 3-D). He also has a crush on Lorraine Baines and constantly refers to her as "my girl." Lorraine does not return the sentiments.
By 1985, Biff's marital status is unknown – no mention of a wife or children was ever made in the trilogy,[1] although Biff has a teenage grandson Griff by 2015, suggesting that Biff had at least one child by 1985. The animated series reveals that Biff has a son, Biff, Jr. (who, according to an early script for Back to the Future Part II, owns the Cafe 80's), although this may not be canon. A draft script reveals that his middle initial is "H" for "Howard", although his middle name was never mentioned in the trilogy. Also, a BTTF comic showed a "Mugsy Tannen" living in 1920s Prohibition-era Chicago as a gang boss.
The exact details of Biff's life before 1955 are not known. According to the film, he has been living with his grandma, Gertrude Tannen, at 1809 Mason Street for some time by November 1955. The whereabouts of his parents Frank and Mrs. Tannen are not disclosed in the film. Biff's grandmother is not shown on screen, but her shrill voice (which was also that of Thomas F. Wilson) can be heard yelling at him. He had to repeat a year of school (explaining why, despite being a year older than George and Lorraine, he is in the same grade as them), although it is not known exactly when he was "kept behind" – this was probably some years prior to 1955, as Biff appears to have been bullying George for some time before this date.
