He would probably develop a new sense of family. In the wizarding world, he had his friends and some family, but the Cullens would be a whole new family unit. This could make him more protective and more in tune with the idea of family loyalty. His magic might also change in some ways. Maybe he'd use it in more creative ways to fit in with the Cullens' needs, like using magic to create a more vampire - friendly environment for them at home.
Harry's character would likely become more aware of different cultures. Growing up among the Cullens, he'd be exposed to vampire culture. This would make him more open - minded. He might also become more cautious, as vampires have different threats compared to the wizarding world.
Harry would grow in his understanding of his own power. With the Cullens, he's no longer just the Boy Who Lived in the context of the wizarding world. He has to adapt his skills and knowledge. He could start to see magic as a tool not just for fighting dark wizards but also for coexisting with vampires. His relationships with the Cullens would also shape his character. If he forms a close bond with Carlisle, he might become more of a healer or peacemaker, influenced by Carlisle's values. And his interactions with the other Cullen siblings would add new layers to his personality, such as learning from Rosalie's strength and determination.
His character would become more adaptable. Having to fit into the Cullen family, which is so different from what he's known in the wizarding world, would force him to be more flexible. He might become more secretive as well, since he'd need to hide his wizarding past from most of the vampire world.
He'd probably become more reserved. Growing up with the Cullens, who are often cautious and secretive, he'd pick up on those traits. His Gryffindor courage might be tempered with the Cullens' more calculating approach to life.
Harry's character would undergo a significant transformation. The Cullens' values of self - sacrifice and protecting the family would influence him. He'd likely become more empathetic towards non - human beings. His magic might be used in more creative ways to adapt to the Cullens' lifestyle. For instance, he could use magic to make their home more vampire - friendly. His confidence would grow as he learns from the Cullens' strong family bond.
Harry's character would likely be a mix of confusion and determination. He'd be confused by Voldemort's teachings which go against his natural inclination towards good. But his determination to find his true self would remain. He might develop a sort of duality, acting one way around Voldemort and his followers, but secretly being someone else.
He could develop new interests and skills. Since he's in a different family environment, he might be exposed to different hobbies or magical studies. For instance, if Dean's family has a tradition of potion - making in a unique way, Harry could pick up on that and become quite proficient, which would also boost his confidence.
His character would become more worldly. Since the Delacours are from France, Harry would be exposed to different values and ways of life. This could make him more open - minded. For example, he might be less rigid in his views on magic compared to when he was only in the British wizarding world.
His character would develop in multiple ways. Firstly, he'd become more resourceful. The Winchesters often find themselves in tight spots, and Harry would have to learn to use whatever he has at hand, including his magic, to get out of trouble. Emotionally, he might become more guarded as he realizes the harshness of the world they live in. But at the same time, he could also develop a stronger sense of loyalty towards the Winchesters, seeing them as his new family.
Harry's character would likely become more stoic. Byakuya's influence would make him more reserved in showing emotions. He might also become more strategic in his thinking, as Byakuya is known for his calculated moves.
Harry's character would likely become more light - hearted. Growing up with the Weasleys, he'd be surrounded by laughter and love. He might lose some of his brooding nature. His self - confidence could grow as he is part of a big family that supports him unconditionally.
Harry might become more open and outgoing. The Creevey family's positive attitude could rub off on him, making him less guarded. He could also become more family - oriented, learning the importance of family bonds from the Creeveys.