Impa

Inpa is a recurring character in the The Legend of Zelda series. She typically serves as a nursemaid and/or bodyguard to Princess Zelda and often offers guidance to Link. The Impa in The Legend of Zelda: Ocarina of Time and The Legend of Zelda: Skyward Sword are the only true confirmed Sheikah in all the series; Sheik is Princess Zelda's alter-ego and the other characters theorized as Sheikah are not confirmed by Nintendo. It is implied that the Impa from The Legend of Zelda and Zelda II: The Adventure of Link is a Hylian due to the fact that she doesn't have red eyes; however, this could be only a case of retcon by Nintendo. This is further supported by Impa's reference in the Zelda II: The Adventure of Link/Prologue of Zelda II to the Impa family charged with guarding the Royal Family of Hyrule.