This is the Category Index. New sub-categories can be added into it as needed. Note that items may exist in multiple groups. Bender is in two categories: Characters and Robots. Leela is in three: Characters, Humans, and Mutants. The Planet Express ship is in other three: Technology, Ships, and Farnsworth's creations. And Cubert is also in three: Characters, Humans, and Farnsworth's creations. However, he would not be included in Technology, except indirectly.
- Alien species