Well, obviously Harry and Hermione themselves are great to focus on. Harry with his courage and the mystery of his connection to Voldemort, and Hermione with her vast knowledge of magic. Their interactions and how they grow together while exploring the secrets of the Half - Blood Prince's book can be really engaging.
The Half - Blood Prince himself, though his identity might be more of a mystery or a key to be uncovered in the fanfiction. His influence through his notes and spells would be a major part of the story.
The main characters are Harry and Ginny. Harry is the central figure in the wizarding world's fight against Voldemort. Ginny, on the other hand, is not only important as Harry's love interest but also has her own strength and character. Sometimes, characters like Dumbledore or Snape might also play important roles in the fanfiction as they are closely related to the events in the Half - Blood Prince.
The 'Half - Blood Prince' is Severus Snape. He was a half - blood wizard, son of a Muggle father and a witch mother. His old potions book that Harry uses is filled with his own spells and notes, which is how Harry discovers his identity as the 'Half - Blood Prince' later in the story.
Obviously, Harry is one of the main characters. He's the one who has the Half - Blood Prince's book. Hermione might also be a main character as she often helps Harry understand the complex knowledge in the book. Ron could be there too, providing his unique perspective and support.
In 'Harry Potter and the Half - Blood Prince' fanfiction, Draco Malfoy is often a very popular character. His complex situation in the original story, being forced into Voldemort's service, makes him a fascinating subject for fanfiction writers. They often explore his inner thoughts and possible redemption arcs.
One interesting plotline could be Hermione's discovery of a hidden spell in the Half - Blood Prince's book that she uses to protect Harry in a dangerous situation. For example, she might find a spell that creates an impenetrable shield around them when they are attacked by Death Eaters.
Well, Harry Potter is likely to be one of the main characters. He's always been an important part of Hermione's life in the original series, and in this fanfic, he might play a crucial role in the events related to the Half - Blood Prince. Maybe he and Hermione are on a joint mission to uncover the secrets of the Half - Blood Prince.
Harry Potter himself is of course very important. He continues his fight against Voldemort. Hermione Granger is also crucial. She helps Harry with his studies and investigations. And Ron Weasley, Harry's best friend, provides support and comic relief.
In 'Half - Blood Prince' fanfiction, you can often find characters like Harry Potter, Hermione Granger, and Ron Weasley. These are the central characters from the original 'Half - Blood Prince' book and are carried over into many fanfictions. There might also be original characters created by the fanfiction authors to add new plotlines or relationships.
One popular original character is often a new student at Hogwarts who has a mysterious past. This character might be related to an old wizarding family that has been in hiding. Another could be a powerful healer who comes to Hogwarts to help with the injured students during the dark times. And then there's the character who is a master of an ancient and forgotten form of magic that helps Harry in his fight against Voldemort.