Alm-Onji

Alm-Onji is Heidi's grandfather. He lives in a small cabin in the alps.
One day his daughter-in-law's sister appears and leaves Heidi with him.

He's a very wise man that loves mountains and the curse of living there. He doesn't have very good relationship with town or city people, so people tend to think he's very bad and angry, but he loves Heidi and is kind.