Harry would likely be very cautious. He's faced many dangerous creatures before, but the Weeping Angels are a whole new level of threat. He'd probably try to keep his friends safe while also trying to figure out how to stop them. Hermione would immediately start looking for a way to defeat them, researching in every book she could find. Ron would be on edge, ready to fight if necessary but also a bit nervous.
It could be a really dark and strange fanfiction. Harry would likely grow up in a very different and menacing environment. The Weeping Angels' nature of being stone when observed and deadly when not could lead to a lot of tense situations for Harry.
Obviously, Harry Potter himself would be a main character. And the Weeping Angels would play a huge role too, acting as his guardians or captors depending on how the story is written. There might also be some Hogwarts professors who try to rescue Harry or understand his situation.
One great fanfiction might be one where the Weeping Angels are introduced into the Hogwarts grounds. The Weeping Angels' time - freezing abilities could create really interesting scenarios with the magic of Harry Potter. For example, they could freeze some spells in mid - air, leading to a very different kind of battle or mystery for Harry and his friends to solve.
Hermione, on the other hand, would likely have a more critical view. She'd analyze the fanfictions for their accuracy in terms of magic lore and Hogwarts traditions. If there were any inaccuracies, she'd be quite perturbed. However, she might also appreciate the creativity that goes into some of the well - written ones that add new dimensions to their magical world.
They could be part of a hidden threat in the wizarding world. Maybe they were sealed away long ago and are now being accidentally released. Their presence would cause chaos as they are so different from the usual magical creatures in Harry Potter.
Some characters might be excited. They could see him as a new source of knowledge and magic.
The Weasley family would have different responses. Mrs. Weasley would be motherly and concerned about this strange new person. Fred and George would see her as a source of new ideas for their pranks and inventions. Ginny would look up to her as a strong female figure, much like she does with Hermione. And all of them together would gradually get used to having Powergirl around, and they would all grow from the experience of interacting with someone from a completely different world.
Batman would probably be very cautious at first. He'd want to study Harry and his magic to see if it could be a threat or an asset. The Joker might see Harry as a new plaything, a strange and magical being to toy with. Commissioner Gordon would likely be intrigued and hope that Harry could help clean up Gotham's streets.
Some characters might be quite amused. For example, Hermione would probably analyze the fanfiction from a logical perspective, critiquing the plotlines that involve ships. Ron, on the other hand, might be a bit bewildered at first but then find it rather entertaining. Harry himself could be either indifferent or intrigued, depending on how the ships are portrayed. If it's a ship that he has a personal connection to, like his parents, he might be more interested in seeing how the author has envisioned their relationship in the fanfiction world.
Dumbledore would likely be very accepting of Stitch. He has a great understanding of all kinds of creatures and beings. He would see Stitch's potential for good and might even try to find a place for him at Hogwarts. Snape, however, would be more skeptical. He would keep a close eye on Stitch, worried that he might disrupt the order of the school or cause harm to the students. The Weasley twins would probably find Stitch hilarious and would want to play pranks with him or use his unique abilities for their own mischievous plans.