Valoo

The Great Valoo (ヴァルー, Varuu) is the almighty Sky Spirit. In The Wind Waker, Valoo resides at the top of Dragon Roost Island and is the patron deity and protector of the Rito people that dwell there. Valoo only speaks the ancient Hylian Language, so only few can understand him, and even his attendant Medli has trouble sometimes. Valoo grants the Rito their wings when they come of age, and always protects them from harm. When Link first visits Dragon Roost Island, he finds out that Valoo is in a bit of a predicament: he is being tortured by the tremendous monster Gohma, hidden in the mountain beneath Valoo's high peak. Link must defeat Gohma in order to progress in the game and receive Din's Pearl. Just before Link and Tetra are about to be killed by Ganondorf when they travel to the top of Forsaken Fortress, it's Valoo, Komali and Quill who rescue them. Valoo unleashes a blast of fire onto Ganondorf's viewing platform in an attempt to kill him.

His relationship to Volvagia (Fire Temple's boss in Ocarina of Time) is unknown, but the location of Dragon Roost Island (in relation to the rest of Hyrule) is notably similar to Death Mountain; Volvagia is the dragon from Death Mountain, so it is highly possible that Valoo is of a relation to Volvagia.