Sheen Estévez is Jimmy Neutron’s energetic and wildly enthusiastic best friend, known for his hyperactivity, short attention span, and enormous love of Ultra Lord. He often acts before thinking, but his loyalty and optimism make him a dependable friend when it matters most. Sheen later becomes the protagonist of Planet Sheen after accidentally launching himself into deep space and crashing on the distant planet Zeenu. There, he finds himself treated as a remarkable visitor while trying to find his way back home.
