Noss is a bespectacled woolly rhino and is a helper to Serras, the Prime Rhino of Hawn. He is highly intelligent and always carries a calculator with him to work out tricky math problems, often reciting the results out loud. He is meek and easily frightened, but can be brave if he has to be. Although Noss is kind at heart, he can be stubborn and a little stuffy. He accompanies Arx, Iggy, Admiral Rosso, and Serras in the Sauropod to battle the solawurm Grakk. After Grakk was freed from the control of the megalosaurus hypno-ships, Noss managed to save the day when he tripped up Lord Rawhead as as the carnivore rushed from Shuttle Alpha to steal the Sauropod.