Who are some potential characters that could interact with Big Chill Baby in fanfiction?

One potential character could be a rogue alien scientist who is interested in Big Chill's biology. Another could be a young alien apprentice who looks up to Big Chill. And a third could be an ancient alien guardian who has knowledge about Big Chill's species' history.

Obviously, Hagrid could be one. He would be so amazed and probably take baby Harry on little adventures around the Hogwarts grounds, listening intently to what Harry has to say.

There could also be other characters like their parents or mentors who play important roles. The parents might pass on their wisdom and powers to the Big Chill Babies, and the mentors could guide them in their growth and development. So, in addition to the Big Chill Babies, these supporting characters are also key elements in the fanfiction.

Tsunade would definitely be one. As the most renowned medical ninja in the village, she could either be Naruto's mentor or a colleague. They could exchange medical knowledge and experiences.

A merman could be one. He might be curious about the Black Sea Reaper and try to make friends or, on the contrary, see it as a threat to his underwater territory. Another could be a sea witch. She could have her own motives, either to help or to hinder the Black Sea Reaper. A young sea turtle could also be a character. It could look up to the Black Sea Reaper as a hero and follow it around on its adventures.

There could be new characters as well, like a devil mentor figure who teaches Percy about his devil heritage. This character could be ancient and have a lot of knowledge about the devil realm. Or there could be an angelic character who is initially an enemy but later realizes Percy is not fully evil and they end up forming an unlikely alliance.

Naruto might interact with Eostia's warriors. They could train together, Naruto showing them his ninja combat skills and them teaching him about Eostia - style combat. There could also be some mysterious characters in Eostia, like an old hermit who has some knowledge about Naruto's sudden appearance in their world and could guide him on his journey in Eostia.

Sasuke could be one. He might be intrigued or even challenged by Naruto's new wild ways. Their rivalry could take on a new dimension as Sasuke tries to understand what has changed Naruto so much.

Obviously, his old friends like James Potter or Remus Lupin could come to visit him in the hospital. They would bring some of their old Hogwarts memories and cheer him up. Then there could be the hospital staff, like a strict but kind - hearted matron who takes care of Sirius. Also, other patients in the hospital might interact with him, such as an old wizard who has some valuable advice for Sirius.

Obviously, the Big Chill babies would be the main characters. They are likely to be the focus of the story.