By the way, I was able to find the information about the Skull Kid appearing in Twilight Princess:
Skull Kid - A regular in the N64 Zelda games, he became a major character in Majora's Mask, but it is still unknown what kind of role he will play in this game. It is, however, known that Skull Kid will be Link's enemy in Twilight Princess, as he is seen blowing a musical instrument that summons the Skull Kid Creatures. He is also seen here holding a lantern, leaving no space for him to carry any weapons of his own. Perhaps this tells us that you will not be fighting Skull Kid directly, but will instead be only fighting the monsters he summons.
Skull Kid Creatures - These creepy creatures are summoned by the Skull Kid's musical instrument. Their weird smile is very off-putting, but do not be fooled - they are definitely your enemies! The Skull Kid Creatures hover in mid-air with their limbs hanging at strange angles, and the best way to defeat them is to parry around them and jump up to slash at their backs. They have the same kind of style to them as the Skull Kid, and this could suggest that we will only see them when the Skull Kid is near to summon them.
Those are both pictures from a trailer.
So now Skull Kid summons stuff too. Kafei can summon yellow foxes that ask riddles? Skull Kid summons monsters who (ironically enough) have numerous tentacles with which to attack you.
Sorry, but Kafei sucks. At least Sheik was a ninja. Kafei was a little kid who stood on switches, and could also (gasp!) roll and slap things.