Evil Jimmy Neutron

Evil Jimmy is one of Jimmy's clones created in Send in the Clones. He was created to do chores for Jimmy, though he causes trouble and escapes instead. He later makes prank calls all over the Earth after hijacking the communication satellite. Jimmy eventually attempts to turn Evil Jimmy good, though he fails, and Evil Jimmy just pretends, until he is able to use the duplication machine in order to create a whole new evil planet. The cause is revealed to be a dark chip placed in the machine, which is destroyed, causing Evil Jimmy and the planet to disappear as he swears revenge. He was voiced by Rob Paulsen.