In a fanfiction, the Addams family could attend a Quidditch match. Gomez would be cheering loudly and making wild bets, while Morticia would be gracefully observing the action. Wednesday might be more interested in the Bludgers, seeing them as potential weapons. The Hogwarts students would be bewildered by their presence. Meanwhile, the Addams family could introduce the wizards to some of their own 'games', like a game of 'catch the flying scorpion' which would be both terrifying and exciting for the Hogwarts crowd.
Harry Potter and his friends would be both shocked and intrigued by the Addams family. Ron would be constantly freaked out by their strange habits, like Gomez's love for knives and Morticia's long black hair that seems to have a life of its own. Hermione, however, would be eager to learn about their family magic, if they have any. She might try to study it like she does with other forms of magic in the wizarding world. And Harry would probably be a bit cautious but also curious, seeing as he has his own experience with dark and strange things.
In a fanfic, Draco Malfoy would probably look down on the Addams family at first, seeing them as 'weird' and not up to his pure - blood standards. But the Addams family wouldn't care about his snobbishness at all. Instead, they would just be themselves. Morticia might even make Draco a bit uncomfortable with her elegance and mysteriousness. And the Addams family's pets, like Thing, could cause some chaos in Hogwarts, which would be both amusing and a bit of a headache for the Hogwarts staff.
The characters can interact in many ways. For instance, Harry Potter could visit the Addams Family mansion. He might be a bit shocked at first by the spooky decor and the family's rather unusual habits, but he could also find common ground. Harry has dealt with his fair share of dark and strange things, so he might be more accepting than others. On the other hand, Wednesday Addams could visit Hogwarts. She would likely be unimpressed by the 'normal' magic and might try to find the darker corners of the school and the secrets that the other students are too afraid to explore.
Well, Wednesday would likely be very matter - of - fact in her interactions. She doesn't have time for small talk. Harry, used to the more chatty and friendly environment of Hogwarts, would have to adjust. But as they interact more, Harry would see that Wednesday has a sharp mind and a strong will. Wednesday would see Harry's courage and determination. For example, if they were in a dangerous situation in the wizarding world, like facing a group of dark wizards, Wednesday's ability to stay calm and think rationally in the face of danger would be an asset. And Harry's magical skills would be useful to Wednesday, who has no wizarding training. They'd form a unique bond based on mutual respect for their different strengths.
In a fanfic, if Harry Potter and Wednesday Addams were to interact, their different outlooks on the world would create an interesting dynamic. Harry has grown up in a world of magic but also with a sense of hope and the fight between good and evil. Wednesday comes from a world that is more accepting of the dark and the strange. Harry might introduce Wednesday to the concept of using magic for good, while Wednesday could show Harry that not all that is dark is necessarily evil. For instance, she might have a different way of dealing with dark creatures, not just seeing them as something to be defeated but perhaps understanding them on a deeper level.
Morticia would likely be intrigued by Harry. She might be drawn to his mysterious past in the wizarding world and his magical abilities. Gomez, on the other hand, would probably be excited to have a new family member to share his adventures with. Wednesday might see Harry as an interesting addition, someone who could bring a different kind of darkness to the family. And Pugsley might look up to Harry, especially if Harry shows him some cool magic tricks.
The Addams family could fit into the wizarding world by bringing their own sense of style and values. Their mansion could be a place where students go for a different kind of magical experience. They might hold parties where they showcase their strange magical artifacts. In terms of the Hogwarts houses, they might not fit the typical mold. Wednesday could be a unique Slytherin who doesn't care about the pure - blood - mania but rather about her own personal power. Pugsley could be a Hufflepuff who is loyal to his family's odd ways. And the family as a whole could contribute to the diversity of the wizarding world.
Harry Potter would likely be in awe of Hercules' strength at first. He might be a bit cautious too, as Hercules is from a different world of gods and myths. But they would probably quickly become friends as they both have a strong sense of justice. Hermione would be very interested in Hercules' stories about the Greek gods and would constantly ask him questions, trying to learn as much as she could.
Harry would probably be cautious at first. He's used to the magic in his world, and an Imperial Arm would be something new. He might study it carefully, like he does with new spells. Hermione would be all about researching it, looking for any information she could find. Ron might be a bit more skeptical, but still curious. They would all approach it with the mindset of trying to understand how it fits into their world of magic.
Moana would likely be curious about the magic in Harry Potter's world. She might ask Harry to show her some spells, like the levitation charm. Harry, on the other hand, would be impressed by Moana's courage and her ability to sail across the ocean. He could learn from her about determination. Hermione might study the culture of Moana's island, and Moana could learn about Hermione's love for books and knowledge.