Often, in such fanfictions, Harry Potter is a central figure. But new characters might be introduced as well. For instance, there could be an alien wizard or a native of the other planet who becomes an important ally or antagonist. Hermione would play a crucial role in trying to figure out the scientific and magical aspects of the new planet. And Ron would be there for support, having his own moments of bravery and comic relief. However, the author might also choose to focus on the next generation of characters like Albus Potter or Rose Weasley, sending them on this inter - planetary adventure.
It could be Harry Potter himself, as he might be the one to explore the other planet. Hermione would also likely be there, using her vast knowledge to understand the new world. Ron might accompany them as well, providing his loyalty and humor.
It's hard to say for sure without reading it, but it's likely that Harry Potter would still be one of the main characters since it's a Harry Potter fanfiction. He might be portrayed in a different light, though.
Since I don't have detailed knowledge of this novel, it's hard to say exactly. However, based on the title, the central character is surely the 'girl'. There could be other supporting characters like a love interest, a mentor - type figure who helps her understand her place in this 'different planet' situation, or antagonists who oppose her unique way of being.
Well, he could face a whole new set of challenges. Maybe the magic there works differently. For example, spells he uses on Earth might not have the same effect, or he could encounter a powerful dark force that he has to figure out how to defeat without the help of his usual Hogwarts friends and professors. He'd have to rely on his own wits and the skills he's learned over the years to survive and overcome difficulties.
One interesting idea could be how the magical world of Harry Potter would adapt to the different environment of another planet. For example, how would spells work in a planet with different gravitational forces or atmospheric conditions. Another idea might be the discovery of new magical creatures native to that other planet.
Hermione would be a great help. Her vast knowledge of magic and books could provide the necessary information for building the planet, like the right spells and magical theories.
Harry Potter himself is still very popular in these fanfictions. Since it's his story in an alternate life, readers are still interested in seeing how his character develops differently. Hermione Granger is also often a central figure. Her intelligence and loyalty are traits that are explored in different ways in the alternate storylines. Another popular character is Draco Malfoy. In an alternate life, his relationship with Harry can take many interesting turns, whether they become friends or have a more nuanced rivalry.
Perhaps a group of rogue time - traveling wizards. They come from a future in this dimension where the wizarding world has been destroyed, and they believe that changing the past (even if it means causing chaos) is the only way to save their future. They see Harry as a threat to their plans because he has a natural inclination to preserve the present order.
It could be a planet where magic is more powerful and less restricted. Harry, having faced so many limitations in the wizarding world he knew, would create a place where magic can be used freely for good. There could be no dark wizards or threats like Voldemort, and wizards could focus on exploring and expanding their magical abilities. For example, they could create new spells without the fear of them being used for evil.
In many 'Planet Jackson' fanfiction, Jackson himself is the central figure. But there could be other important characters as well. For example, a local guide on 'Planet Jackson' who helps Jackson understand the planet's secrets and mysteries. Or perhaps a rival from Earth who also ends up on the planet and tries to compete with Jackson for resources or power. There could also be a group of rebels on the planet who Jackson either joins or opposes, depending on the plot of the fanfiction.
Well, clearly Vionery is one of the main characters. Depending on the story, Harry Potter himself might also be a central figure, as he often is in most Hogwarts - related fanfictions. Hermione Granger could also be involved, using her intelligence to assist Vionery in her adventures or studies at Hogwarts.