Filburt and Paula's children

Gilbert, Shelbert, Norbert, and Missy (Voiced by E.G. Daily) are the four children of Filburt and Dr. Hutchison, who all came from the same egg in the fourth and final season of the show. Gilbert and Shelbert look exactly like Filburt while Missy is a miniature version of Hutchinson. Norbert, on the other hand oddly resembles Heffer. He also believes that Rocko is his father and constantly follows him around. For most of the series, the four are featured as babies; they appear once as teenagers in the episode "Future Schlock."