Coach

Coach is the Hill Valley High gym teacher, and coach to Biff and Chip. He also teaches Sex Ed and Driver's Ed, but tends to get the two confused.

Appearance
His brown hair is cut short, and he always wears his "coach" T-shirt. He is sometimes seen with a whistle around his neck, and his pants are blue.

Quotes
"Well, Biff has a lot of potential, but no initiative. And Chip has a lot of initiative, but no potential."

- Bucketheads

Trivia

 * In the episode, Get Off My Back, Milo called him “thunder thighs” because of his weight.