Harry would likely be more confident. With his father alive, he would have a strong male figure to look up to and learn from directly. He might not have the same insecurities as in the original story.
If Lily and James survived, Harry would grow up with a very different sense of security. He wouldn't have the same orphan - like feelings and the need to prove himself as much. He might be more confident and less reckless in his actions. His relationship with his parents would shape him into a more well - rounded wizard, as he'd have their guidance and love from the start.
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.
Harry would likely be more confident. With his parents alive, he would grow up with their love and support, not having to face the same insecurities. He might be less impulsive as he would have their guidance. For example, he wouldn't have to jump into dangerous situations alone as he'd have his parents to back him up.
Harry's view of the world might change completely. He has seen so much darkness and death. With his parents' return, he could start to see the world in a more hopeful light. He may be more willing to forgive those who have wronged him in the past, like Snape. Their return would be a catalyst for a huge shift in his personality, making him more balanced and less haunted by his past traumas.
One possibility is that James could play a significant role in Harry's growth as a wizard. He might teach Harry advanced magic that Dumbledore or other professors didn't cover. For example, he could pass on family - specific spells or magical techniques. This would change the whole dynamic of Harry's adventures at Hogwarts. He would also be there to protect Harry more directly from Voldemort and his Death Eaters, which would likely lead to different battles and outcomes compared to the original story.
Meeting his parents would likely give Harry a sense of closure. He's always had this longing to know them, and actually interacting with them could fill that emotional void. This new - found peace might make him more confident in his actions, less driven by anger towards Voldemort.
The meeting would likely give Harry a new sense of self - worth. After being abused, he might have felt worthless. But seeing his parents, who love him unconditionally, would make him realize his value. He would become more confident and less likely to tolerate further abuse.
In many fanfics, Harry's character becomes more withdrawn initially. He has lost yet another person he loves deeply. He isolates himself from his friends as he battles his own grief and anger. But as the story progresses, he realizes that he needs his friends and becomes more open again. He also matures faster, taking on more responsibilities as he feels he has to be stronger in the face of Sirius' death.
If Harry was betrayed by his parents in fanfiction, he would likely become a much more cynical and distrustful person. His whole world view was based on his parents being heroes, so this betrayal would shatter his beliefs and make him question everything.
Harry's character development would be significantly different. With his parents alive, he would be exposed to a more stable family environment. His magical education could start earlier and be more comprehensive as he learns from two powerful wizards. This could make him more powerful and less impulsive. Instead of seeking validation from others like he did at Hogwarts in the original story, he would have the unconditional love of his parents, which could shape him into a more well - rounded and less angst - ridden character. For example, he might not have had such a strong urge to prove himself in dangerous situations.