Well, perhaps Harry would have a much darker personality. Azkaban's gloomy environment could have made him more cynical. He might start to question the very nature of the wizarding world. And when he finally gets out, he could be on a mission to completely change the way Azkaban is run, or even the whole justice system in the wizarding world. Since he grew up surrounded by the so - called 'criminals', he might realize that not all of them are truly bad.
Well, if we consider a 'Harry Potter grows up in Azkaban' fanfic, it could start with Voldemort winning and somehow Harry ends up in Azkaban as a baby. Growing up there, he would have to endure the cold and the constant presence of dark magic. He may learn some unusual magic just from being in that environment, and his relationships with other inmates or guards (if there are any kind interactions) could be really strange and complex.
His magical abilities might be stunted at first. The depressing and soul - sucking environment of Azkaban could suppress his natural magical growth. But on the other hand, he might develop some unique magical skills out of necessity. For example, he could learn to create his own light source to combat the darkness, which is a magic not typically taught in Hogwarts.
The plot could develop with Harry having to face the harsh rules of Azkaban. He might start to form alliances with other prisoners who are wrongly accused, like his father's friends perhaps. And as he grows, he starts to understand the dark secrets of the wizarding world from a different perspective, one that is filled with the pain and injustice of Azkaban.
Harry might survive in Azkaban because of his connection to his friends, even if they betrayed him. Their memories could give him the strength to hold on. And he may be able to use his magic in unique ways. He could draw on the positive emotions he has left, like his love for his parents, to create a shield against the Dementors. Plus, he may be constantly looking for a way to prove his innocence and that hope could keep him alive.
Well, it could be about Harry and Tom becoming friends as they grow up. Maybe they learn magic together, face challenges side by side, and their friendship changes the course of the wizarding world.
The main characters are Harry and Tom. Harry, the boy who lived, and Tom, who could be a complex character in this fanfiction. He might not be the evil Voldemort we know from the original story. Instead, he could be a young wizard with potential for good or bad, and Harry's influence on him is a major part of the story.
Well, clearly Harry and Hermione are the main characters. Harry, the boy who lived, with his courage and natural talent for facing dark magic. And Hermione, the brilliant witch, with her vast knowledge of magic and her logical thinking.
Definitely Ginny. Since she's Harry's love interest in the original series, in the fanfiction about them growing up, she has a big role. She could be shown as a strong, independent witch who is equal to Harry in many ways. Draco Malfoy is also a character that features a lot. Sometimes, fanfiction explores his redemption arc further as he and Harry have to interact in the post - war wizarding world.
One difference could be his personality. Growing up in an orphanage might make him more independent and self - reliant from a young age. He would have to fend for himself more without the Dursleys' influence, which could also make him more distrustful of adults initially.