Gaepora

Gaepora is the father of Zelda, and the headmaster of the Knight Academy in Skyward Sword. He is knowledgeable of the history and legends of Skyloft, and is the one that gives Link his green garb when Zelda gets kidnapped.

Trivia

 * Gaepora's name bears resemblance to the owl Kaepora Gaebora. He even laughs with an owl-like "Hoo, hoo, hoo". He also shares some physical similarities; his eyebrows and triangular beard correlate with some of Kaepora Gaebora's characteristics. Some have speculated that Gaepora may in fact be the Sage of whom Kaepora Gaebora is a reincarnation.
 * Gaepora also bears resemblance to Rauru.
 * The book he is holding in his official artwork bears a striking resemblance to the Book of Mudora from A Link to the Past.
 * By entering Zelda's room via the chimney at night, Link can find Gaepora taking a bath.