How would the character of Harry Potter change in a 'Harry Potter is reborn's brother fanfiction'?

In the original story, Harry often felt alone in his battles. But with an OC as his brother, there would be a constant ally. The OC could have different relationships with the teachers too. Suppose the OC has a particular interest in potions like Snape. This could lead to a different kind of mentorship and perhaps change Snape's view of the Potter family. And when it comes to the final battles, the OC could bring in additional magical artifacts or allies that were not part of the original story, completely changing the way the fight against Voldemort unfolds.

He would likely become more hardened. In the Harry Potter world, he had his friends and Hogwarts as a sort of safe haven. As a Stark, he'd be in a much harsher world. He'd probably be more aggressive in protecting his family and territory.

If reborn into Marvel fanfiction, Harry Potter's character would experience significant changes. His sense of self - reliance would be tested as he'd be surrounded by powerful superheroes. He'd have to learn to rely on others more, which could make him less solitary in his decision - making. His view of power would also expand. In Hogwarts, magic was the main form of power, but in Marvel, there are so many different sources of power like super - soldier serum, gamma radiation, and alien technology. This would make him more curious and eager to learn about different forms of power and how to use them effectively. His moral compass might also shift slightly as he'd encounter different ethical dilemmas in the Marvel universe that are not the same as those in the wizarding world.

He might be more confident from the start. In his past life, Harry grew up without his parents and had a difficult childhood. But as James' brother, he would grow up in a loving family environment. This could make him more outgoing and less hesitant in social situations.

He'd be more adaptable. Quarians live in a different way than wizards, so Harry would learn to be flexible in new situations.

Harry Potter reborn as a Jedi would have a different upbringing. Instead of growing up with the Dursleys, he'd be in the Jedi Temple. This would change his perspective. He'd be more focused on the balance of the Force rather than the battle between good wizards and bad wizards. His relationships would be different too. He'd form bonds with other Jedi, and his loyalty would be towards the Jedi Order. His character would be less about the magic of spells and more about the power of the Force, but his core values of bravery and standing up for what's right would remain.

He'd probably be more morally ambiguous. Growing up as Crowley's son, he might not have the same clear - cut sense of right and wrong as the original Harry. He could be more cunning and less hesitant to use underhanded tactics if necessary.

Harry would probably be more attuned to dark magic. His upbringing by Satan would expose him to different forms of magic and he would have a different understanding of power. He might be more ruthless in achieving his goals and less concerned about the consequences for others. For example, in the original series, Harry was always worried about the safety of his friends, but in this fanfiction, he might use his friends as pawns if it served his purpose.

He would become more cautious. Harry has faced so much danger in his life, and as a father, he would do everything to keep his children safe. So, he might be a bit overprotective at times.

Harry would probably become more physically bold. Since Hercules was known for his strength and heroic deeds, Harry could be more likely to take on challenges head - on, using his physical abilities more often. His personality might also change in terms of his leadership. With the added boost of being related to a great hero, he could be more assertive in leading his friends and the Order of the Phoenix. He'd no longer be just the Boy Who Lived, but also the son of a powerful demigod, which would surely impact how he views himself and his role in the wizarding world.