Grandpa is a fair-skinned Japanese man who is elderly with small brown-black eyebrows and silver/gray hair. It's unknown what his eyes look like since they're seen closed but it probably the same color as Grandma and Mama.
He wears a cream colored shirt with a blue collar, brown belt, plain pants and brown shoes.
- Grandpa is one of the few friends who wears glasses.
- He is also one of the only friends to wear glasses.