Ooblar was King Goobot's royal assistant and brother in Jimmy Neutron.
Ooblar was the self-appointed "checker of new things to be checked" on the planet Yolkus. He is the brother of King Goobot. The character no longer serves as King Goobot's assistant since he was traded for sulfur butter. Ooblar has only appeared in one episode of the show; The Eggpire Strikes Back.