Question: who plays biff on back to the future
Answer: Thomas Francis Wilson Jr. ( born April 15 , 1959 ) is an American actor , voice - over artist , comedian , writer , musician , painter and podcaster best known for playing Biff Tannen , Griff Tannen and Buford `` Mad Dog '' Tannen in the Back to the Future trilogy and Coach Ben Fredricks on NBC 's Freaks and Geeks and for his voice - over work in movies , TV shows and video games .