Ralph

Ralph is a non-player character from The Legend of Zelda: Oracle of Ages. Ralph is the guardian of Nayru, the Oracle of Ages.

Ralph became the protector of Nayru when he was a child, and has watched over her ever since. When the sorceress Veran finds Nayru and takes control over her, Ralph quickly chases the possessed Nayru through a time portal. He meets Link at several points in the game, and appears to be jealous of him. He also considers Link to be of lower skill than himself. However, ultimately, Link rescues Nayru. It is revealed later in the game that he is the descendant of Queen Ambi, the ruler of Labrynna in its past.

In the ending cutscenes, Link can be seen training Ralph to better use his sword.

Recourses

http://zelda.wikia.com/wiki/Ralph