Who are the main characters likely to be in 'black cat train and rinslet fanfiction'?

In this fanfiction, the black cat could be the guardian of the train. One day, a strange force starts affecting the train's normal operation. The cat senses that this force is related to Rinslet. So, it decides to leave the train and venture into the world of Rinslet. There, it finds that an ancient curse is causing problems. The cat then uses its intelligence and some unique skills it has (like being able to move stealthily and having sharp senses) to break the curse and save both the train and Rinslet.

Obviously, Harry as the reborn Black would be a main character. Sirius Black would probably also play a major role, as he's an important part of the Black family. And Bellatrix Lestrange could be another key character, her relationship with the Black family and her own dark nature would create a lot of interesting interactions with Harry in his new identity.

For the black cat character, you can start by giving it unique mannerisms. For example, it always arches its back when it senses danger or it has a habit of rubbing against Eve's legs when it's feeling affectionate. In terms of its backstory, it could have been a stray cat that was adopted by the train's conductor in the past, which gives it a special connection to the train.

The main character is the narrator. He is the one who tells the story and whose actions drive the plot. The black cat is also a crucial character. It is the object of the narrator's actions, both his love at first and then his hatred.

The main character is the unnamed narrator. He is a complex figure who goes through a transformation from a normal person, perhaps, to someone consumed by madness.

The main characters in 'The Black Cat' are the person telling the story and the black cat. The narrator's changing attitude towards the cat and the strange happenings around them make up the crux of the tale.

Obviously Naruto would be one of the main characters. And since it's about him being the son of Black Canary, Black Canary herself would be important. There could also be characters from the Naruto series like Sasuke and Sakura. They might be curious about Naruto's new powers and his strange origin.

Harry, of course, is central. Sirius is likely to be like a father figure to him. Bellatrix Lestrange could be an interesting character in this scenario. Although she's a bit of a dark character, her presence in the Black family and her strong beliefs could create a lot of drama and conflict. Also, Kreacher, the house - elf of the Black family, would be around Harry a lot, and their relationship could develop in unique ways compared to the original story.

Sasuke could also play a major role. His rivalry with Naruto might take on a new dimension with Naruto having the power of the Black Dragon Emperor. He could either be jealous and try to compete even more fiercely, or he might be intrigued and eventually team up with Naruto in a new way.

I'm not entirely sure as it could be a very specific and perhaps user - created piece of fanfiction. It might involve a black cat and some sort of death - related event on a train. But without actually reading it, it's hard to say more precisely.