Harry could be more open - minded. Growing up with Supergirl, he'd be exposed to different cultures and species (since she's an alien). This would make him more accepting of others and more eager to explore new things. He might also be more brave, as Supergirl is always facing dangerous villains, and he'd learn from her example.
He'd probably be more confident. Supergirl is a strong and confident character, and she'd likely instill those traits in Harry. He might not be as shy or reserved as he was in the original stories.
I think Harry would be more of an extrovert. Supergirl is often in the public eye, fighting crime and helping people. Harry, being raised by her, would likely be more involved in community - related activities. He'd be more comfortable around people and more willing to show off his abilities, whether they be magical or super - powered. Also, he might have a stronger sense of justice, as that's a big part of Supergirl's character, and she'd pass that on to him.
If Harry was raised by Poppy, his personality would be very different. Poppy is all about taking care of others and healing. Harry would have a calmer demeanor. He would be more in tune with his emotions and those of others. He wouldn't be as quick to anger or rush into dangerous situations. Instead, he'd approach problems with a more nurturing and solution - based mindset, much like Poppy does when she treats patients at Hogwarts.
Harry would be more solitary. Growing up with Aragog, he'd be used to the company of spiders and forest creatures rather than humans. He might be more wary of people and less trusting. His sense of self - protection would be highly developed.
He might be more shrewd. Goblins are known for their business acumen and cunning. So, Harry could be more calculating in his decisions, not as impulsive as in the original story.
Harry's personality would likely be a blend of his original traits and Wolverine's. He'd be more solitary at times, like Wolverine. But also, he'd still have that underlying sense of justice from his own story. He might be more cynical too, due to Wolverine's jaded view of the world. He would probably be quicker to act and less patient with bureaucracy or rules that don't seem to make sense.
Harry's sense of humor might be different. Instead of the quick - witted and sometimes sarcastic humor he had in the original story, he could have a drier, more understated sense of humor. Snape's own rather caustic personality could influence Harry to be more subtle in his jokes and remarks, and perhaps a bit more cynical at times.
If raised by Hecate, Harry would likely be more self - assured in his magical abilities from an early age. Hecate's teaching methods might instill in him a deep sense of pride in his magic. He could also be more aloof, as he would be used to a different kind of magical society under Hecate's influence. His values would be shaped by Hecate's ancient wisdom, so he might be more focused on the bigger picture of magic in the universe rather than just the wizarding world's problems.
He might be more hardened. Westeros is a tough place, so he could be less naive than in the original story.
He would likely be more aggressive. Demons are often associated with aggression, so Harry might not be as patient or kind - hearted as in the original story.
Harry's personality would be much different. Mileena is a complex and often brutal character. Harry, under her care, would likely be less trusting and more self - reliant. He might not be as open - hearted as the original Harry. His sense of humor could also be darker, influenced by Mileena's world where there is a lot of death and struggle.
His personality would be much more bold and fearless. Deadpool's influence would make Harry less afraid of taking risks and more willing to jump into dangerous situations without hesitation. He would also be more adaptable as he would have grown up in a constantly changing and chaotic environment created by Deadpool.