Triforce Keeper

The Triforce Keeper is a character from Zelda II: The Adventure of Link. A very mysterious character, this elderly dwarf-like man appears at the very end of the game to give Link the Triforce. When Link enters the chamber of the final battle, he spots the Triforce Keeper standing atop a pillar. The man proceeds to magically disappear, and Dark Link jumps out of Link's body, setting up the game's final battle. When Link defeats Dark Link, the Triforce Keeper appears again and approaches the hero. He hands over the Triforce and the game switches scenes to Link awakening Princess Zelda in North Castle.

The identity of the Triforce Keeper is completely unknown. No explanation is ever give on who he is or why he has the Triforce. It is also unknown if he is the one who summoned Dark Link, and if so, why?