Spike is the male Stegosaurus in the series, a species known as Spiketails.He is a mute and very rarely speaks in the series, making it hard to see his personality and thoughts sometimes. He is loyal to his friends nonetheless and it is clear that he cares very much about them, especially Ducky who's family took him in. Spike has an extremely large appetite and is often shown to eat anything and everything, sometimes putting the others into tight situations because of this.