The original design called for Jason to have hair, but Savini and his crew opted to make him bald, so he would look like a "hydrocephalic, mongoloid pinhead", with a dome-shaped head.
I den ursprungliga designen hade Jason hår, men Savini och hans team valde att göra honom flintskallig, så han skulle se ut som en "vattenskallad, mongolisk pinhead", med ett kupolformat huvud.