Who is Gramps Schneider from Waldo and what is their importance?

Gramps Schneider is the "hex doctor", who shows Waldo how to fix the balky deKalb receptors and his own body by reaching into the "Other World" for energy. He is a childhood acquaintance of Hugh MacLeod, and he dislikes machines and technology. Gramps does, howver, agree to fix the broken deKalbs that Hugh brings him because he likes to help "boys."