He died at 10 and became a hellspawn, and him and his friends (Tweek, Thomas, Estella, and Pip) all got sent to earth through a portal when a group of teens he hates played with a ouija board and forgot to say goodbye. Gregory hates a teen named Stan Marsh and wants to get revenge for Stan killing him. Gregory is a flirty and charming, but also manipulating hellspawn who wears an orange button up shirt and black unbuttoned jacket on top with black jeans and black shoes, and long, blonde hair.