Gustav

Gustav is a caterpillar character from Sesamstrasse, the German co-production of Sesame Street. Gustav is Rumpel's pet caterpillar who lives in his rain barrel. He is the only character Rumpel shows his soft-natured side to. Gustav doesn't speak. Gustav was added to the Sesamstrasse cast in the 2000's. He was based on Oscar the Grouch's pet worm Slimey.