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Gertrude Tannen

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Gertrudetannen
Gertrude Tannen
Biographical information
Physical description
GenderFemale
Behind-the-scenes information
Played byThomas F. Wilson (voice)
  [Source]
Gertrude Tannen sign

Marty McFly spots Gertrude Tannen's name above the door of the Tannen residence through binoculars.

"The front door opened and Biff walked out. / 'Biff!' the elderly woman's voice called from inside the Tannen house. 'Where are you going, Biff?' / Biff started to walk quickly away from the house. / 'To get my car, Grandma!' he called over his shoulder. / 'But when are you coming back, precious?' his grandma whined. 'My feet hurt, and I want you to rub my toes some more. And put polish on them!' / Biff waved violently back at the house. / Marty called back to Doc on the walkie-talkie. 'Never mind, Doc. Biff lives here all right.' "
—From Back to the Future Part II by Craig Shaw Gardner (quote, pages)

Gertrude Tannen was Biff Tannen's grandmother, Tiff Tannen and Biff Tannen Jr.'s great-grandmother, and presumably Buford "Mad Dog" Tannen's daughter-in-law.

Biff was her only grandson, but in an alternate timeline, where Kid Tannen didn't go to jail, she was also the grandmother of Cliff and Riff.

History

Gertrude Tannen lived with Biff at their house in Hill Valley. It is likely that she is the mother of both Irving "Kid" Tannen and Frank Tannen.

Gertrude was known to be an extremely unpleasant woman, and did not seem to encourage visitors. This was supported by the fact that a large handwritten sign at the gate read NO TRESPASSING / VIOLATORS WILL BE PROSECUTED / THIS MEANS YOU!!, while a handwritten sign reading KEEP OFF THE GRASS! was also stuck into the front lawn.

Biff would transport her in his car to Las Vegas, Nevada, so she could play the slots, and she would insult him while he was driving.

In 1955, in an alternate timeline, Biff received a sports almanac detailing fifty years of sports statistics from his older self. Since he was only seventeen, he couldn't bet, so he gave money to his grandmother to bet on the Chicago Bears. She didn't bet on the Bears, and lost, making Biff twenty dollars poorer. Biff told her to make another bet, on the Washington Redskins. However, she only gave Biff back his twenty dollars, and kept the rest for himself. When Gertrude claimed Biff was as greedy as his father, Biff stated that he learned that from her.

Biff later was approached by a shady man named Uncle Lou, who saw Biff using the almanac to tell his grandmother which teams to pick. He killed Gertrude, and put her in the back of his car to bury her. He planned to steal the almanac, kill Biff, and bury him next to her. However, when he went to hit Biff with a tire iron, Biff caught it and killed him instead. Biff justified the murder in his mind based on the fact that Lou had killed his grandmother. He buried Lou, and took all of the money that was in his briefcase. With the money, he covered up the murder of Gertrude by paying to have a death certificate forged that stated she died of natural causes.

Later at school, Lorraine Baines offered her condolences for the loss of his grandmother, and Biff tried to proposition her, before clumsily trying to apologize for his actions at the Enchantment Under the Sea dance.

Biff then tried to use the death of his grandmother as an excuse to Principal Strickland for his repeated absences. When Strickland told him he would be repeating his senior year for the third time, Biff tried to bribe him with some of Lou's money. Strickland then expelled him from school, and Biff stated that he intended to drop out.

Behind the scenes

  • Gertrude Tannen was never shown on-screen, but her voice was provided by Thomas F. Wilson, notably where she is yelling at her grandson Biff (also played by Wilson).
  • Tom Wilson stated in an interview that the incessant nagging from Biff's grandmother may be the primary reason Biff grew up to be so mean. She could be heard yelling to Biff the night of the Enchantment Under the Sea dance.

Appearances

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