It could be a group of friends. Each friend might have a different reaction to the pokemon showing up in real life. One could be super excited and want to catch them all, another might be more cautious and worried about the potential dangers. Together, they would navigate the new world where pokemon and humans meet, having adventures and learning important lessons along the way.
The main characters would surely include Ash. In Pokemon Red, the rival character, Gary (or whatever name you choose for the rival in the game), could also play a major role. And of course, the various gym leaders from Pokemon Red. They could have different encounters with Ash, some might be friendly and help him, while others could be more challenging opponents. Also, Professor Oak might be involved, as he is connected to both Ash's world and the world of Pokemon Red in some ways.
In these fanfics, the main characters can vary widely. One type is the Pokemon trainer - turned - real - life - hero. They are usually kids or teens who already have some knowledge of Pokemon from games or shows and are quick to adapt. They might be joined by their friends or family members. Also, there could be characters who are initially skeptical about Pokemon in real life but then become believers and important parts of the story. For example, a journalist who at first thinks it's all a hoax but then discovers the truth and helps spread the word about Pokemon in the real world.
There could be other supporting characters too. Maybe some of Harry's friends from Hogwarts like Hermione and Ron could make an appearance in the fanfiction. They might be initially skeptical of Carskile but then grow to accept him. And on Carskile's side, he could have his own set of friends or family members who play a role in the story, for example, his sister who gives him advice on how to deal with Harry.
Obviously, Robin would be one of the main characters. And then, of course, the Avengers members like Iron Man, Captain America, Thor, etc. would be there as well.
Obviously, Draco Malfoy and Dudley Dursley are the main characters. Draco, with his blond hair and aristocratic air, is a well - known Slytherin from the Harry Potter series. Dudley, on the other hand, is Harry's cousin, a rather large and spoiled Muggle boy. Their encounter would be the central focus of this fanfiction.
Well, in addition to the obvious ones, there could be some secondary characters that play important roles. For instance, Miles' friends or family from his universe might be involved. They could add a different perspective to the story. And on the Avengers side, characters like Black Widow or Hawkeye could have some interesting interactions with Miles. Black Widow could teach Miles some spy - like skills perhaps, while Hawkeye could show him some new archery techniques if Miles was interested. They all together would make the story more rich and engaging.
Obviously, Obito is one of the main characters. He has a complex backstory and his presence is bound to have a big impact on the Akatsuki.
Obviously, Percy and Poseidon are the main characters. Percy, the young demigod with his courage and powers, and Poseidon, the powerful god of the sea.
The main characters would be Hermione, Bellatrix Lestrange, and maybe Rodolphus Lestrange. Hermione is the hero of the story, and Bellatrix is a very well - known and crazy Death Eater. Rodolphus could be there to add more of the dark family's presence and power dynamics.
Obviously, Naruto would be one of the main characters. He's the central figure from the Naruto universe. And then there would be the Pokegirl. She could be any type of Pokegirl, like a Pikachu - girl or a Charmander - girl. Their different personalities and abilities would drive the story forward.