The Back to the Future films highlighted high schooler Marty McFly's action-packed time-travel experiences with Doc Brown in the trusty DeLorean. In most 1980s films, a high school bully usually stood in the way of the protagonist, like Johnny Lawrence in The Karate Kid. In Marty's case, he faced not his high school bully but his father George's in the 1950s.

Biff Tannen and his obnoxious posse frequently picked on George and forced him to do their homework. Biff's favorite insult was "butthead," and he would knock on people's heads and ask if anybody was home. Writers Robert Zemeckis and Bob Gale actually based the antagonist on two people. Considering Biff's brash personality, who could ever influence a person like him?

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Gale and Zemeckis found themselves in trouble after their script for Back to the Future was rejected over 40 times by different film studios. Although, this wasn't their first rodeo when it came to script issues with studio executives. Biff's name was taken from Paramount studio executive Ned Tanen -- who was behind films like American Grafitti and Animal House. Tanen reacted negatively to Gale and Zemeckis' pitch idea for the 1978 film I Wanna Hold Your Hand -- which was revealed in a Q&A section on the DVD for Back to the Future.

Tanen -- who was Jewish -- had labeled the script for I Wanna Hold Your Hand anti-Semitic. The film, which followed several teenagers' experiences to gain access to The Beatles' first live appearance on The Ed Sullivan Show, was Zemeckis' directorial debut and Steven Spielberg's first executive producer credit, although Spielberg agreed to direct if it went poorly with Zemeckis. I Wanna Hold Your Hand earned somewhat positive reviews but was unable to make a financial profit. While Tanen's reaction negatively struck a chord with Gale and Zemeckis, he wasn't the only inspiration behind Biff Tannen.

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According to an interview with The Daily Beast, Gale revealed he had former U.S. President Donald Trump in his mind when creating the character of Biff. Gale referenced the scene where Biff smugly stood in front of a portrait of himself to compare Biff and Trump. After viewers were informed of the inspiration, several plot elements reaffirmed Trump's influence on Biff. Biff's tremendous wealth from a multi-floored casino, like the Trump Plaza Hotel that opened in 1984, allowed him to run the government of Hill Valley, CA.

Biff's control over the government and his desire to be viewed as America's greatest living folk hero turned the city corrupt. Biff's likeness with Trump even included physical appearance. Old Biff's sleazy hairstyle resembled Trump's combover. While Back to the Future was released before Trump became president, Michael J. Fox compared Trump's presidency to how Biff ruled Hill Valley in an interview with The Guardian. Will viewers ever be able to un-see the comparison now that they've become aware of it?