Does anybody know if Biff has ever been seen without his helmet, or any kind of head gear? If he has, does he have a full head of hair, or does he have a bald spot (like the one that Dr. Teeth has)? I know that Sully has been seen without his helmet at least once, and oddly enouhg, this was in his last new appearance. It was in a season 30 episode, where Biff and Sully are doing some work on the street, and Sully drills so hard that hs helmet fell off. The only hair that Sully has is the hair that can be seen when he wears his helmet. Other than that, he is bald. back to the original topic, has Biff been seen without a hat or helmet? Oddly enouhg, he even wore his helmet in the bathtub in Do De Rubber Duck.