Matthew is a really quiet dinosaur compared to the others. He's an underwater creature who is able to go above the water for a certain amount of time like a dolphin or shark. His favorite food to eat is shark and other underwater animals. He's usually quiet and almost always complaining to himself about how he eats too much and how the doctor tells him that he'll develop a certain disease. He always sounds depressed whenever he speaks and is not really social. He is an underwater dinosaur.