Trivia
- John was named one of top five "Bad Boys Of The NFL" by Sports Illustrated on January 14, 2005.
- John weighed 308 pounds when he competed in the World's Strongest Man Competition in 1978.
- John's make-up for his role as "Sloth" in The Goonies (1985) took 5 hours a day to apply. He wore a robotic eye that was controlled off-screen by remote control.
- John was 6 feet 8 inches tall.
