Who are the common characters in Harry Potter trains fanfiction?

Obviously, Harry Potter himself is a main character. Since it's about him being alone on the train, he is the central focus. But sometimes, other characters like Dumbledore might make an appearance in his thoughts or as a sort of guiding force. For example, Harry could be reminiscing about Dumbledore's advice while on the train.

There could also be new characters introduced in the fanfic. Maybe a new mentor figure who guides Harry in his training. This character could have unique magical abilities and knowledge that they pass on to Harry. Another possibility is an antagonist who tries to disrupt Harry's training for some reason, adding conflict to the story.

I'm not sure specifically as it depends on the author of the fanfic. But it could include the classic Harry Potter characters like Harry, Hermione, and Ron. They might be on the train for some special reason related to their fight against Voldemort or some other new threat.

Harry is the central figure, but there might be some new characters introduced in the fanfic. For example, an old wizard who lives on the outskirts of Hogwarts and has some unique knowledge about magic that Harry discovers. This character could become a sort of mentor, even if from a distance, as Harry trains himself using the knowledge he imparts. Also, there could be antagonists like some students who are jealous of Harry's self - improvement and try to disrupt his training.

Sirius Black could be a trainer. Sirius, being Harry's godfather, would be highly motivated to train Harry. He could use the time - turner to go back to a time when he was at his peak in terms of combat skills and pass on his knowledge to Harry, especially in the areas of dark - wizard fighting and survival skills.

It could be the children of his friends. For example, Ron and Hermione's kids might be among those he trains. They would have a natural inclination towards magic but still need guidance from Harry in the new forms of magic.

Harry Potter himself is often a central character. He might be exploring the vaults in search of something that could help him defeat Voldemort once and for all, like a powerful weapon or a spellbook.

Neville Longbottom is a common character in 'Harry Potter inheritance fanfiction'. Given his family's important place in the wizarding world and their losses, he could inherit something significant, like a powerful magical plant - related ability that was once held by his family. Draco Malfoy is another one. He might inherit some dark family secrets or a powerful magical object from the Malfoy family vaults, which could lead to all sorts of interesting storylines as he grapples with his family's legacy.

In 'Harry Potter Rebel Fanfiction', characters like Sirius Black can be important. He was a rebel in the original story, and fanfiction can explore more of his rebellious nature. Severus Snape could also be a character in such stories, especially if the fanfiction delves into his complex relationship with the Death Eaters and his own form of rebellion against Voldemort. And don't forget about Dumbledore. There could be fanfictions that explore his more secretive and perhaps rebellious actions behind the scenes that we didn't fully see in the original series.

Often, Hagrid shows up. Since he has a great love for magical creatures, he could be involved in some sort of magical farming with them. Maybe he's trying to breed a new type of magical beast that can help with plowing the fields or something like that.