One of my personal favorite characters from the Legend of Zelda universe. Skull Kid is kinda a sad creature, children who get too far lost in the Lost Woods turn into these playful and mischievous beings, seemingly immortal they enjoy their eternity playing pranks on travelers and playing the flute. This particular Skull Kid ends up possessed by Majora's Mask and almost destroying Termina. Considering most if not all other Legend of Zelda villains are either manipulated or controlled by Gannon, I think Skull Kid is pretty cool, plus his motivation at the beginning of it all was just to find a friend.