The main characters in pokemon exiled fanfiction can be quite diverse. There are often exiled legendary pokemon. For example, a Mewtwo that was exiled because of its uncontrollable power. Also, there might be a young, rebellious trainer who is also an outcast in human society and thus feels a connection to the exiled pokemon. He or she then becomes a central figure in the story, trying to change the situation for the exiled pokemon. There could also be a group of misfit pokemon, all exiled for different reasons, who together form a sort of family and are the main focus of the story.
Often, the main character is an exiled pokemon itself. It could be a Pikachu that was exiled for accidentally causing a power outage in a major pokemon city. Another common main character could be a trainer who is sympathetic to the exiled pokemon and decides to help them.
The main characters can vary widely. Besides the obvious Litwick and related Pokemon, there could be a young protagonist who has a special ability to communicate with Pokemon spirits. This character might be on a quest to understand the true nature of the Litwick Mansion. There may also be a group of thieves in some fanfictions who are after the rumored treasures hidden in the mansion, which are guarded by the Litwick and other Pokemon.
There could also be a mysterious pokemon trainer who has a special ability to hypnotize pokemon. This character might be a bit of an enigma, with motives that are not clear at first. They could be either a villain trying to use hypnosis for their own gain or a misunderstood character who is actually trying to help pokemon in a different way through hypnosis.
Well, Proton himself is obviously a main character. He's often the center of the story, whether it's about his actions within Team Rocket or his possible transformation. Then there are often Pokemon characters. His own Pokemon, if he has any in the fanfiction, would be important. For example, his Houndoom could play a significant role.
Often, young and ambitious trainers are involved. They might be curious about Pokemon abilities and conduct their own little experiments. Scientists also play a big role. They usually have the resources and knowledge to carry out more complex experiments on Pokemon in a more formal setting.
Ash and Serena are often the main characters. Their relationship in the Pokemon anime has a lot of potential for amorshipping fanfiction. Ash's determination and Serena's grace make for an interesting dynamic in the stories.
Misty is another character that can be paired with Brock. Their dynamic in the show was quite interesting, and in fanfiction, it could be developed further. For example, they might have an adventure where they have to rely on each other's skills more than ever before.
The new girl herself is obviously a main character. She could be a shy girl who gradually becomes more confident as she trains her Pokemon. Often, her first Pokemon, like a Eevee or a Bulbasaur, can also be considered a main character as it grows and develops alongside her.
Another common main character could be a Pokemon researcher. They enter the strange house not just for adventure but to study the unique Pokemon or phenomena that are associated with the house. Their knowledge helps in understanding the strange happenings and they might also have a Pokemon partner that aids them in their exploration.
In some fanfictions, Harley could be paired with new original characters created by the author. These new characters could be trainers who are either inspired by Harley or are trying to stop his more devious plans in the Pokemon contest circuit.
The dragon and the kyuubi are obviously the main characters. The dragon is often depicted as strong, with the ability to fly and breathe fire or other elements. The kyuubi, on the other hand, is known for its fox - like appearance and powerful magic, especially illusion - based magic.