Baby Edward "Eddie" Neutron is a character in the TV series The Adventures of Jimmy Neutron: Boy Genius. His goal was to kill Jimmy's family and be rich with the Neutrons' fortune. He is 17 1 1/2 months old. He first appeared in "Clash of the Cousins" where he's the antagonist and villain. He is first smiling when the family is at a family reunion and he then grins as the bomb he placed inside the spatula nearly kills the family but it fails to kill them. He then begins to cry like a baby and Jimmy is banished into the house but then Baby Eddie managed to get inside to reveal his plan. The windows and door shut tight and the room becomes dark. He laughs and traps Jimmy, Sheen, Carl, and one of the family members. He traps them in electrified rings and shocks Goddard with his rattle and grabs his battery and locks Jimmy, and the gang in the room. He goes outside and places the battery in the cake but Jimmy comes out in time to save everybody and he reveals Goddard had an extra battery and he attacks Eddie but the parents and relatives become furious until Baby Eddie Neutron talks in his man voice and he is sentenced to life on "The Leash" as the family is forced to apologize to Jimmy.
Baby Edward Neutron reappeared in The League of Villains to get revenge, with most of Jimmy's enemies.
Role in the series
Despite being technically stuck in a young body due to cartoon-based immortality, Eddie is a minor enemy of Jimmy that hardly appears in the series. He does villainous schemes on his own since all 3 main villain teams cannot take him seriously as he is just a silly Stewie-Griffin-like baddie.