Buford "Mad Dog" Tannen is the main antagonist in [[Back to the Future Part III]].

He was a local outlaw in Hill Valley, California in the year 1885. He was the son of Beauregard Tannen, the paternal grandfather of Irving "Kid" Tannen and Frank Tannen, the great-grandfather of [[Biff Tannen]] and the great-great-great grandfather of [[Griff Tannen]].
buford tannen