One common character type is the guardian spirit. This could be an entity assigned by God to watch over the adopted character. It might have special powers or knowledge to aid the main character in their journey. Then there are the celestial messengers. They are like the couriers between God and the adopted one, bringing important messages or tasks. And of course, there are the regular mortals who are affected by the actions of the main character and their relationship with God.
Often, the main character is the one adopted by God, of course. There might also be angels as supporting characters. They could be the ones guiding or protecting the adopted human. Another common character could be the devil or some sort of evil entity that tries to tempt the main character away from their path with God.
One common character is of course Ash himself. Another could be Pikachu, as it is Ash's most loyal Pokémon. There might also be Misty or Brock, as they are Ash's long - time friends and could play a role in the adoption story, either being supportive or having doubts about the new situation.
Obviously, Harry Potter himself is a central character. Hermione and Ron might also play important roles. They could be trying to figure out what happened to Harry and how to reverse the deaging. Dumbledore might also be involved, perhaps guiding the situation from the shadows or trying to protect Harry in his new situation.
Obviously, Willy Wonka is a common character. He's the one who adopts the protagonist. The Oompa - Loompas are also common. They might play different roles, sometimes as helpers, other times as a bit of an obstacle for the adopted character. And of course, the main character who is adopted by Wonka is always there.
Well, of course, Percy Jackson himself often makes an appearance. He could be a mentor figure to the adopted son, guiding him through the ropes of being a demigod. Annabeth is also common, perhaps helping the adopted son with her wisdom and knowledge of the mythological world.
Ron could also be there. He might be a bit jealous at first if Harry's adopted family is wealthier or has more influence in the wizarding world. But later, he would support Harry as always.
Harry Potter himself can be a common character in such fanfiction. Maybe in these stories, he has an adopted sibling or a new family member through adoption, which changes the dynamics of his relationships. For example, if he has an adopted Muggle - born sister, he might have to protect her more fiercely from the Death Eaters.
The Weasleys are very common. Given their big hearted nature and their closeness to Harry in the original story, it makes sense for them to adopt him in fanfiction. They already treat him like family, so it's a natural fit.
There could be Jared's family members. Maybe his parents or siblings who play a role in accepting or rejecting the new addition to the family in the fanfiction. For example, if Jared has a sister, she might be initially skeptical about the adopted character but then grow to love them over time.
Well, in this kind of fanfiction, there are often powerful alien leaders who play important roles. They might be initially suspicious of the human but later come to respect them. There are also the alien scientists who study the adopted human, trying to understand human biology and culture. And don't forget the alien outcasts who find common ground with the adopted human. They bond over their shared feelings of not quite fitting in.
I'm not entirely sure as it depends on the specific fanfiction. But usually, Zerrie would likely be important characters, perhaps as the adopters or some sort of central figures in the story.