Evil Libby is Libby's evil clone and one of the inhabitants of Evil Earth.
Background[]
She looks and sounds exactly like Normal Libby, but unlike Normal Libby, she's an extremely sadistic girl and a total bully. She and Evil Cindy give a presentation on wedgies and do a very painful atomic wedgie on Evil Nick. Then, the two decided to give a more painful and truly memorable wedgie on Jimmy with jumper cables. Just as they were about to do the wedgie on him, Jimmy defended himself and tied them up, painfully electrocuting them in the process. Later, after Jimmy undid the duplication process, Evil Jimmy sucked the whole Evil Earth into a void to prevent it from fading.
In the planned season four, Evil Libby and the rest of the clones in Evil Jimmy’s class would've escaped from the Dark Matter Dimension and attacked Jimmy and his class, who were on a field trip to an asteroid.