Well, if Harry Potter characters met the actors in a fanfic, chaos might ensue at first. The characters are used to their own world, and suddenly seeing people who look exactly like them but are from a different realm would be quite a shock. However, they could also bond over their shared 'existence'. For example, Draco Malfoy might initially be hostile to Tom Felton, but then they could find common ground in their 'roles' as the 'bad boy' in different ways.
If this were to happen in a fanfic, there would be a lot of cultural exchange of sorts. The Harry Potter characters live in a world full of magic, while the actors come from our modern, Muggle - like world. The actors could introduce the characters to things like movies and modern technology. Meanwhile, the characters could show the actors real magic. For instance, Harry could perform a simple spell, and the actors would be both amazed and perhaps a bit scared. It would be a really unique and exciting scenario.
Well, it could be really exciting. Maybe Percy would show Harry some cool water - based magic tricks using his powers over water. And Harry could introduce Percy to the world of wands and spells. They might team up to fight some common enemy, like a dark wizard who also has a connection to the Greek gods.
Well, it could be really chaotic. The characters might be shocked to see the actors who play them. For example, Harry Potter himself might be really confused seeing Daniel Radcliffe. He'd probably wonder why this person looks like him but is clearly not from his wizarding world. Maybe Hermione would start asking the Emma Watson version of herself all sorts of questions about the Muggle world.
There would be a clash of two very different power systems. Harry's magic might initially confuse Thanos. Thanos, on the other hand, with his brute strength and the Infinity Stones, would be a huge threat to Harry. Maybe Harry would try to find a magical way to neutralize the power of the Infinity Stones. For example, he could use a spell that disrupts magical or non - magical energy sources. It would be a battle of wits as well as power.
He might be quite amused. Fanfics often contain different interpretations of the characters and the wizarding world. He could find some creative ideas in them that he never thought of before, like unique magical spells or new backstories for his friends.
In fanfiction, if Percy Jackson met Harry Potter, they might first be a bit wary of each other. Percy, with his water - based powers and Greek mythology background, and Harry, with his magic from the wizarding world. But soon they could realize they have a lot in common. Both are heroes in their own right, facing great challenges and having a strong sense of justice. They could team up to fight a new threat that combines the dark forces from both their worlds, like a wizard who has harnessed the power of Greek monsters.
Well, it could be really interesting. For example, Hermione would probably be very critical. She might point out all the inaccuracies or things that don't match the 'canon' knowledge she has. Harry himself might be quite shocked at some of the interpretations of his own story. And Ron would probably make a lot of jokes about it.
Well, he could bring his magic skills to the team. Maybe he could use spells to enhance the Avengers' weapons or defenses. For example, he could put a protection charm on Iron Man's suit to make it even more resistant to attacks.
In such a fanfic, Harry might experience extreme pain and weakness. His friends would likely be in a panic. Hermione would probably immediately start looking for antidotes in the library or with her vast knowledge of potions. Ron would be by Harry's side, trying to keep him conscious and reassuring him.
Well, he might start collecting Pokemon cards instead of magic ones. He could try to use spells to catch Pokemon, which would be really interesting.
Well, in a 'Harry Potter adopted by Delacours' fanfic, it could be really interesting. Harry would be part of a family that has a different set of values and customs. The Delacours might train him in unique ways of magic that are more in line with Beauxbatons. He could get to know the Veela heritage better, and perhaps it would give him some advantages in his magical abilities. Also, there could be new storylines around his interactions with the Delacour family members and how they deal with the fame and danger associated with Harry.