Well, if Harry Potter was raised by Tsunade, his character would likely be much more confident in his physical abilities from an early age. Tsunade is a strong fighter in the Naruto universe, and she would probably train Harry in combat skills. He might also be more brash and less reserved, as Tsunade has a bold personality.
Well, Harry's character development would be drastically different. Sesshomaru's values of honor and power would seep into Harry. Harry could become more aloof and less empathetic towards others. Instead of the warm - hearted boy we know, he might be more like a lone wolf. His approach to fighting Voldemort would be less about protecting others out of love and more about a personal vendetta and a sense of duty based on Sesshomaru - like values.
Well, for one thing, his view of the wizarding world would be completely different. Growing up with Bellatrix, he'd probably be taught that pure - blood supremacy was the right way. His relationships would also be altered. He might not have the same friends like Ron and Hermione. Instead, he could be surrounded by Death Eaters or those with dark leanings. His magical skills might develop in a more aggressive and unethical direction as Bellatrix would encourage using magic for domination rather than for good.
Harry's character would become more suave and worldly. James Bond is known for his charm and sophistication. Growing up with Bond, Harry would pick up on these traits. He'd be more comfortable in high - society situations within the wizarding world, like dealing with the Ministry of Magic officials or pure - blooded wizarding families. This would also change his relationships. Instead of being the somewhat awkward boy we know, he'd be more confident in his interactions with Hermione and Ron, and perhaps even more assertive in his leadership role.
He might be more traditional in his magic use as his grandparents would likely teach him older spells. Also, he could be more family - oriented since he was raised by family. He might be less impulsive as his grandparents could have instilled more patience in him.
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.
If Harry was raised by Bellatrix, his character would likely be much darker. Bellatrix is a Death Eater, so Harry would be exposed to dark magic and Voldemort's ideology from a young age. He might be more ruthless and less empathetic compared to the Harry we know. For example, he might not value friendship as highly since Bellatrix doesn't really understand the concept of true friendship. Also, his view of the wizarding world would be skewed towards the pure - blood supremacist ideas that Bellatrix adheres to.
Well, if Harry Potter was raised by Dorea, his character would likely be more refined. Dorea might instill in him a sense of pure - blood pride in a positive way, not the arrogant kind. He would probably grow up with a different set of values compared to being raised by the Dursleys. His magical abilities could be honed earlier and more effectively as Dorea would have a better understanding of magic. Also, his social skills within the wizarding world might be enhanced from a young age, as Dorea would introduce him to the right circles.
If Percy Jackson was raised by a warrior in fanfiction, his character would likely become more battle - hardened from an early age. He might be more confident in his combat skills and less hesitant in dangerous situations. For example, instead of gradually learning to fight monsters as in the original story, he could already have a warrior's instincts, making him a more formidable opponent right from the start.
If Harry killed before Hogwarts, he would likely be much more withdrawn and guilt - ridden. His innocence, which is a big part of his initial character, would be shattered. He might be more hesitant to trust others and be less eager to embrace the wizarding world when he finally gets to Hogwarts.
The plot would change drastically. Harry would not be living with the Dursleys, so there would be no need for him to escape that horrible situation. Voldemort might have a harder time targeting him as his parents would be on high alert. There would be no letter - hunting drama. Also, his relationship with Snape would be different as his father was Snape's rival. His parents could have taught him some advanced magic from a young age, which would make him stand out at Hogwarts in a different way than in the original story.