Obviously, Harry himself is a central character. Then there's often Hermione, who helps Harry figure out the implications of being Merlin's heir. Ron is also there for support. Dumbledore might play a crucial role as the wise mentor guiding Harry through the discovery of his new identity.
Well, in a lot of 'Harry Merlin heir' fanfictions, Neville could be an important character. Maybe he has some knowledge related to Merlin's heritage that he shares with Harry. Luna Lovegood might also be involved, with her unique insights into the magical world. And don't forget about the Weasley family, especially Ginny, who could be Harry's love interest as he embarks on this journey of uncovering his connection to Merlin.
Hermione and Ron are likely to be main characters too. They are Harry's closest friends in the original series, and in this fanfiction, they would probably play important roles in helping Harry understand and deal with his new identity as Merlin's heir. They might assist him in researching about Merlin, or they could be by his side when he faces new challenges because of this heritage.
Another possible candidate in fanfictions could be Neville Longbottom. He has a deep connection to the magical world and shows great courage and growth throughout the series. His latent magical abilities, which are finally fully realized, could be interpreted as him being an heir of Merlin in a way. He has the potential to be a great wizard, just like Merlin was.
Obviously, Harry Potter is a main character as the heir of Merlin. Hermione Granger is often included as she helps Harry figure out the implications of his new status and the mysteries that come with it. Ron Weasley might also be there, providing his usual loyalty and friendship.
Hermione is often a popular character. She usually plays an important role in helping Fem Harry Potter understand her heritage as the heir of Merlin. Ron might also be there, providing his loyalty and friendship. Dumbledore is another character that frequently appears. He might be guiding Fem Harry in her journey of discovery.
It could be a previously unknown student at Hogwarts. Maybe a shy Ravenclaw who has always been good at spells that require great intelligence and wisdom, which are traits often associated with Merlin.
In 'Harry Potter Heir of Gaunt fanfiction', aside from the main characters like Harry, Voldemort, and Hermione, Neville Longbottom can sometimes play an important role. Given Neville's own connection to the wizarding world's history and his growth in the original series, he could be involved in helping or hindering the Heir of Gaunt. And of course, Dumbledore might appear as a guiding figure, using his wisdom to influence the actions of the Heir of Gaunt. There could also be a Gaunt family member who has survived and is either a help or a hindrance to the heir.
Draco Malfoy is also quite popular. Since he is from Slytherin, he could be closely related to the Heir of Slytherin in some fanfictions. Maybe he has some inside knowledge or is even a suspect himself. His complex relationship with Harry could be further explored in this context.
Well, there are several popular characters. Neville Longbottom could be a character in these fanfictions. His growth from a shy and clumsy boy to a brave wizard could be further explored in the context of the heir of Slytherin story. Blaise Zabini from Slytherin could also be popular as he represents a different side of the Slytherin house. And then there's Dumbledore. His wisdom and knowledge about Hogwarts' history, including the secrets related to the heir of Slytherin, make him a character that fanfiction writers often include. The heir of Slytherin themselves, whether they are an original character or a re - imagined version of an existing one, is of course a central and popular character in these fanfictions.
Obviously, the Black heir themselves is a very popular character. Sirius Black also often features prominently as he was an important member of the Black family. Harry Potter usually has a role too as his story is intertwined with the wizarding world in general. And then there are the other Hogwarts students like Hermione and Ron who might interact with the Black heir in various ways.
Well, it depends on the specific fanfiction. Some fanfiction authors might create a really elaborate backstory where Harry Potter is somehow related to Merlin as an heir. They could base it on things like similar magical abilities, a prophetic connection, or a hidden bloodline. However, not all fanfictions follow this concept. There are many different takes on Harry's story in the fanfiction world, and this is just one of the more imaginative ones.