See how often they participate in the script: HERE.
Character Story: The mayor of Link's peaceful hometown, Ordon. He keeps the town in order even during a time of panic. He is Ilia's father. He also has an interesting relationship with the Gorons from his past, one that becomes surprisingly helpful to Link.
Race Story: Humans typically live peacefully with other races throughout all of Hyrule. The more specific Hylian race is a subcategory of humans. They can be differentiated by their ears -- Humans have rounded ears and Hylians have pointed ears.