Grandpa is a character first seen in the episode Grandma at the Mall. He is the father of Mom and Aunty, the brother-in-law of Uncle Snail, the husband of Grandma and the maternal grandfather of Cow, Chicken and Snailboy. Prior to his debut, Grandma had lost track of him and he ended up at a Used Grandpa Lot owned by the Red Guy. Grandma later bought him believing him to be a used grandpa. He is never seen moving or speaking, implying that he is either in a vegetable state or completely senile.