Since it's a Harry Potter fanfiction, we can expect some of the main characters from the original series. Harry Potter himself is probably in it. He might be joined by his friends like Hermione and Ron. There could also be other characters like Dumbledore or Snape if the story is set in Hogwarts or related to the wizarding world's politics. But again, without actually reading the 'lethe harry potter fanfiction', it's all speculation.
The 'lethe harry potter fanfiction' could cover a wide range of topics. It might be a story that takes the well - known Harry Potter characters and throws them into a situation where they have to deal with the implications of 'lethe'. This could be in the form of a moral dilemma, like whether to use a 'lethe - related' magic that has both good and bad consequences. It could also be a love story set against the backdrop of the Potter universe, with 'lethe' being a key element that either brings the characters together or drives them apart, perhaps by causing one of them to forget their feelings for the other.
Since I don't know the details of the 'lethe game story', I can't say for sure who the main characters are.
In harry potter the marauders fanfiction, the main characters are the Marauders themselves. James Potter, the confident and sometimes arrogant Gryffindor. Sirius Black, the black sheep of his pure - blood family. Remus Lupin, the kind - hearted werewolf. And Peter Pettigrew, who was initially part of their tight - knit group. Their interactions, friendships, and later the events that lead to their fates are central to these fanfictions. They are often depicted in their Hogwarts days, full of youth, adventure, and magic.
Harry Potter is the mainstay, as the story is based in the Harry Potter universe. Kurama is the new element that makes it a crossover. In addition, characters like Snape could play significant roles. Snape's complex nature might lead to interesting interactions with Kurama. He could be initially hostile but then come to realize Kurama's value in the fight against the dark side. And of course, Hagrid, with his love for magical creatures, might befriend Kurama and help him adjust to the wizarding world.
Hermione Granger might also be a main character. She is an important part of the original series and her intelligence and knowledge would be useful in uncovering any truths in this fanfiction. Also, Ron Weasley could be there as Harry's loyal friend, and together they could face the challenges related to the 'truth' in the story.
Most likely Harry Potter himself would be one of the main characters. After all, it's in the title related to the Harry Potter world. And of course, the ogre would be a main character too as it's a key part of the fanfiction.
Harry Potter and his friends might also be main characters. Since it's a Harry Potter fanfiction, they could be involved in the story trying to figure out the mystery of the pretender. Hermione would probably be using her intelligence to analyze the situation, while Ron would be there for support and some comic relief.
Hermione Granger could also be a main character. Given her intelligence and knowledge of potions, she would be a key figure in understanding and dealing with Smylex in fanfiction.
Obviously, Harry Potter is one of the main characters. And the snake, which could be a unique creation within the fanfiction, is also a main character. It might have its own personality and abilities that are different from normal snakes in the Harry Potter universe.
The main characters are usually James Potter, Sirius Black, Remus Lupin, and Peter Pettigrew. James is the confident and sometimes arrogant leader of the group. Sirius is the rebellious and loyal friend. Remus, the werewolf, is often the more reserved and intelligent one. Peter is the follower, though his character can be explored in different ways in fanfiction.