Goron

The Wind Waker

Gorons make in appearance in Wind Waker in the Magic Armor Trading Quest. There are three Gorons that can be found in specific places on the map that you may converse with. Buying an item from one of the three gorons costs rupees, but it is worth it to get the prize at the end. After buying something from the gorons, it can be taken to one of the other three gorons. One of the two gorons will find the item interesting, and trade you something more valuable,but it costs rupees to trade. After going through this process several times, you will finally have the most valuable item which can be traded with the merchant on Outset Island to obtain his family treasure, the Magic Armor.

The Gorons have leaves covering their faces but with a swing of the Deku Leaf it will reveal their faces.

Skyward Sword

Gorons have primarily appeared as mountain dwellers and their rock hard bodies are capable of withstanding volcanic heat. However, Gorons have also taken on the more secretive role of traveling merchants. It's not uncommon for Goron's to range quite a bit in size, from small child-like Goron's to the massively over-sized Gorons.

Only one Goron has been seen thus far in Skyward Sword and it holds the appearance of the traveling merchant variety from The Wind Waker. It is unclear whether or not there will be an entire race of Gorons in Skyward Sword or if there is just a single Goron in the game.