Thomas Francis Wilson (born April 15, 1959) is an American actor, writer, musician, painter, voice-over artist and stand-up comedian. He is best known for playing Biff Tannen (and his grandson Griff Tannen and great-grandfather Buford "Mad Dog" Tannen) in the Back to the Future trilogy and Coach Ben Fredricks on NBC's Freaks and Geeks. Description above from the Wikipedia article Thomas F. Wilson, licensed under CC-BY-SA, full list of contributors on Wikipedia.
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