In many fanfictions, Severus Snape could be involved. He has a deep knowledge of dark magic, so he might be either trying to prevent the basilisk ritual from being misused or he could be lured by the power it offers. Dumbledore is also a likely character. He would be the one to guide the students or other characters in dealing with the implications of the basilisk ritual. And of course, Tom Riddle (Voldemort) could be a key figure if the ritual has something to do with his rise to power or his plans for the wizarding world.
Neville Longbottom could be a character in some basilisk ritual fanfictions. He has shown great courage in the original series, and in a fanfiction, he could be the one who unexpectedly has a connection to the basilisk ritual. Maybe his family has some long - forgotten knowledge about it. Luna Lovegood might also be involved. Her unique perspective on magic could help in understanding the strange and dangerous aspects of the basilisk ritual.
Hermione would probably be involved. She's always by Harry's side, and she might be researching ways to help Harry tame the basilisk. Maybe she finds some useful spells or information in the library that gives Harry an edge.
Obviously, Harry Potter himself is usually one of the main characters. He is often the one who has to face the basilisk in these fanfictions.
Well, in some fanfictions, the basilisk ritual could be tied to a prophecy. A young wizard might be the key to either stopping or starting the ritual. This could lead to a race against time as the dark forces try to complete the ritual while the good side tries to prevent it. There could also be a plot where a character is possessed by the essence of the basilisk during the ritual and their friends have to find a way to save them.
Mrs. Weasley is a very likely character. She's an expert at cooking and baking in the normal wizarding world, so in fanfiction about magical bakes, she could be teaching the younger characters how to make special bakes. Hagrid might also be involved. He could bring in some really strange ingredients from the Forbidden Forest, like giant acorns, to be used in the bakes.
Hermione Granger is often involved. In some fanfictions, she discovers hidden conspiracies within the Hogwarts library. For example, she might find a book that reveals a plot by some of the older pure - blood families to keep certain magical knowledge from half - bloods and Muggle - borns.
Harry Potter is the central figure for sure. His friends, Ron and Hermione, are likely to be important as they usually are in Harry Potter stories. In addition, there could be antagonists who are either against Harry because of his strange origin or are trying to use his basilisk - related powers for their own evil purposes. There might also be some sort of basilisk - like creatures or characters with a connection to basilisks that play a significant role in the story.
Some fanfictions may also introduce original characters who are related to known wizarding families. For example, a long - lost relative of the Black family. These characters can bring new perspectives on inheritance. There could also be characters from other magical cultures or regions who have their own unique inheritance systems that interact with the more familiar Harry Potter world inheritance ideas.
Harry Potter himself is often involved. His inheritance from his parents, like the Invisibility Cloak and his family's magical abilities, can be a central part of the story. There could be situations where others suspect he might use his inheritances in a way that betrays the wizarding world, like if he was somehow influenced by the dark side of his family's magic.
Obviously, Harry Potter himself is the central character in this type of fanfiction. Then there are often characters like Voldemort or his Death Eaters, as they are the ones Harry would be changing sides to. Bellatrix Lestrange could be a key figure in trying to persuade Harry or manipulate him into joining their side.
Besides the main trio, Professor Dumbledore can be a significant character in such fanfictions. His wisdom would be invaluable in guiding the use of advanced technologies. Severus Snape might also be involved, perhaps using his potion - making expertise to develop new potions - related technologies. And then there are the Weasley twins. They are always up for some new and exciting inventions, so they would fit right into the concept of advanced technologies in the Harry Potter universe.