Piedra
Piedra is a goron that was recruited by Jack two years before his gang was disbanded. He's a goron carrying a blue coat and a red bandanda with a skull in its right. He may look strong, angry, and always ready to fight, but the truth that he's really calmed, and wants to have a nice and relaxed life. He speaks aggresively so Jack doesn't believe that he's not tough
Sometime ago, when Jack was passing by the Goron Mountains, a rock slide happened. Luckily, Piedra was close and was able to save him. Since they became good friends after that, Piedra helped very much Jack on his journey. Though to his tough-looking, and his aggresive attitude, it makes contrast with Guillermo's calmed and relaxed attitude, and they're often fighting. The only one that truly knows Piedra is Catherine.