Roy's Grandfather lives on an island in the Kanto region. He is an acquaintance of
Friede who often asks him for materials for the Rising Volt Tackler's blimp.
Roy's Father and
Roy's Mother are sailors that worked on the seas just off the island where they live in the Kanto region. They used to let
Roy ride on their boat while they worked but they had to leave on a long voyage, so they left
Roy with
Roy's Grandpa.