Definitely Harry Potter, because he's the main protagonist of the original series and it's natural for fans to continue his adventures in the pocket dimension. Hermione is likely to be there as she has a thirst for knowledge and would be intrigued by the new magical phenomena. And Snape could be a common character too. He could have a different role in the pocket dimension, maybe he has a secret connection to it and his past actions in the main story are related to his experiences in the pocket dimension in some way. Additionally, Luna Lovegood might show up, with her unique perspective on magic being very useful in understanding the pocket dimension.
Harry Potter is a given as the central figure in the original franchise. Hermione would be there to analyze and solve the puzzles presented by the pocket dimension. But we also often see Neville Longbottom in these fanfictions. His growth in the main series makes him an interesting character to explore in a new and challenging environment like the pocket dimension. And Sirius Black could be a character that appears, especially if the fanfiction deals with time - travel or alternate realities within the pocket dimension. His relationship with Harry and his own backstory could be further developed in this new setting.
Harry Potter himself is very common. Writers often use him to explore the new and strange pocket dimension. Hermione Granger is also popular as she would be eager to study and understand the unique magic of the pocket dimension. Ron Weasley might be there too, providing his usual humor and loyalty. Dumbledore could be a recurring character as well, perhaps having some prior knowledge about the pocket dimension and guiding the younger characters through its mysteries.
Hermione is often a popular character. Her intelligence and resourcefulness make her a great asset in different dimensions. She can quickly adapt to new situations and figure out how the magic in that dimension works.
Harry Potter himself is often still a popular character. Since it's a dimension jumper fanfiction, his character can be explored in different scenarios across dimensions. Hermione is also popular as she can use her intelligence to figure out the differences in each dimension.
One interesting concept could be unique magical creatures that exist only in the pocket dimension. For example, there might be flying serpents with rainbow - colored scales that can communicate telepathically. Another concept could be the different rules of magic within the pocket dimension. Maybe spells work in reverse or require a different kind of wand movement. Also, the idea of hidden wizarding schools or communities within the pocket dimension, which have their own traditions and secrets, could be really fascinating.
Characters in Naruto pocket dimension fanfiction interact with the pocket dimension in various ways. For instance, they could be accidentally sucked into it during a battle. Once inside, they might have to find ways to communicate with the native entities of the dimension. They could also try to harness the power of the dimension for their own purposes, like using its unique energy sources to power up their jutsu.
There are also plots where different dimensions are on the verge of colliding. This creates a sense of danger and urgency as the characters have to prevent the collision which could have catastrophic consequences for both their world and the other dimensions. In some fanfictions, a villain might be trying to use the power of different dimensions to take over the wizarding world.
Luna Lovegood is quite popular in 'Dimension Hopping' fanfiction. Her unique perspective and open - mindedness make her well - suited for exploring strange dimensions. Draco Malfoy can also be a key character, especially in stories where he has to team up with the protagonists in a different dimension due to some unexpected circumstances.
Obviously, Harry Potter himself is very common. He's the central character in the original series, so fanfiction often continues his story or reimagines it. Hermione Granger is also a frequent character. Her intelligence and strong - willed nature make her a great focus for many different storylines. Draco Malfoy is another popular one. Writers like to explore his character further, perhaps showing a more complex side to him than in the original books.
Harry Potter himself is very common. After all, he's the main character in the original series and is likely to be at the center of any apocalyptic events in the fanfiction. Hermione Granger is also frequently seen as she's smart and resourceful, which are great traits in an apocalypse. Ron Weasley is another one, as he's Harry's loyal friend and has his own set of skills.
The new generation of students at Hogwarts are very common in these fanfictions. Characters like Teddy Lupin, who has his own unique backstory being the son of Remus Lupin and Nymphadora Tonks. Also, the Weasley - Potter clan members are frequently seen. And in some fanfictions, there are original characters created by the authors, who interact with the well - known Harry Potter characters and add new dynamics to the story.
Another character that could be common is Charlie Weasley. Since he works with dragons in Romania, he can bring a lot of knowledge about dragons to the fanfiction. He might be called back to Hogwarts to deal with a dragon emergency, or be the one to introduce a new type of dragon to the Hogwarts students.