Who could be the villain in 'harry gets turned into a baby fanfiction'?

Maybe it starts with a strange magical experiment gone wrong in Hogwarts. Harry is curious and gets too close, and suddenly he's a baby. The story could then focus on how the teachers, especially Dumbledore, deal with this situation. They might try to figure out if this is a new form of dark magic they haven't seen before. And Harry, as a baby, would have no memory of who he is, so it could also be about his friends trying to make him remember bits of his past life.

It could be an old rival of the Malfoy family. Maybe a wizard whose family was wronged by the Malfoys in the past. This wizard has been biding his time, waiting for the perfect opportunity to strike. Turning Draco into a baby is his way of getting revenge on the family, making them look weak and powerless.

In addition to the usual suspects, there could be some new characters introduced. For example, an old Pokémon trainer who has seen similar things before and can offer some advice on how to deal with baby Ash. Or a mysterious Pokémon that has the power to either help or hinder the process of getting Ash back to normal.

Here are some recommendations for novels about villains turning into babies: 1. "Quickly wear the cannon fodder, the beauty has a good pregnancy and gives birth to a child for the villain": This novel tells the story of the heroine in a different world. She gives birth to a child for the villain and is doted on. 2. "I Give Birth to the Villain (Quick Wear)": This was a quick-wear novel, and the protagonist was also giving birth to the villain's child. 3. "Apothecary of the Other World": This fantasy romance novel tells the story of the female protagonist who was accidentally reborn as a baby and grew up to become a powerful apothecary in the other world. 4. "Little Cutie Is Spoiled by Five Dads": This novel tells the story of Su Ruan, who failed to transcend her tribulation and was reborn as a baby, and was doted on by five dads. 5. "A Farmer's Girl Leaps Over the Dragon Gate": In this novel, the female protagonist is reborn as a newborn baby. She successfully becomes rich with her cleverness and wisdom, and becomes a well-off farmer's girl and a local leader. Please note that the novels recommended above may only be part of the relevant results. There may be other novels that have not been mentioned.

It could be Draco Malfoy. Maybe he somehow manages to use a new spell or a dark object to turn Harry into a ferret out of spite. He might then try to keep Harry in that form to humiliate him in front of the whole school.

The Akatsuki might be the main antagonists. They might think that a baby Sasuke is easier to capture and they could use him for their own purposes, like extracting his Sharingan or something else related to his power. They would be a great threat as they are powerful and cunning.

Another possible main character could be a wise old mentor figure. This person might have knowledge about these strange transformations. They could guide Nico's friends or family in their quest to turn Nico back. Maybe this mentor has been around for a long time and has seen similar magic used in the past, so they know where to start looking for answers.

Perhaps it's a prank gone wrong. A group of Gryffindors, thinking they could teach Draco a lesson, cast a spell on him that they thought would just embarrass him. But instead, it turns him into a baby. Now, Hermione, being the brilliant witch she is, feels responsible for finding a cure. She starts researching in the library, while Ron is left to keep an eye on baby Draco. Ron has no idea how to take care of a baby, and there are lots of comical moments as he tries to feed Draco and keep him from crying.

It could be Voldemort. He might see Harry's new snake form as a way to either use him for his own evil purposes or as a threat to his power. Since snakes are often associated with Slytherin and dark magic, Voldemort might try to control Harry.

It could be Voldemort. He might see turning Harry into an elf as a way to weaken him. Since elves are generally seen as lower in the wizarding hierarchy, Harry in this form would be less of a threat to Voldemort in the eyes of many wizards.