James Isaac "Jimmy" Neutron is the main protagonist of the series and movie. He is the world's smartest 10-year-old. He is named after scientists Sir. James Isaac Newton, and James Chadwick who was nicknamed "Jimmy Neutron", because of his discovery of the neutron.
Jimmy is a genius inventor, but his inventions seem to cause more destruction than anything and it is usually up to him and his friends to stop them. He lives in Retroville with his robot dog,Goddard, who is named after Robert H. Goddard (a pioneer in modern rocketry) and his parents, Hugh Neutron, a bumbling car salesman and duck-lover, and Judy Neutron
Appearance in UltimaEdit
Jimmy Neutron is one of the main scientists of the House of Genius, working alongside the other scientists to create new gadgets, weapons, and technology to further improve the Society, and their war effort. Although the inventions he creates are quite amazing, they have a history of sometimes malfunctioning, which is why the Society mostly realizes on weapons, and mahcines from other universes, but the Boy Genius done his part to improve for the Soc's multi-dimensional war. The story of how his world was taken over will be shown in the Universal Takeover story, Jimmy Neutrons Nightmare.