Well, obviously Petunia is one of the main characters. She is Lily's sister and has a complex relationship with the wizarding world. Then there are the Marauders - James Potter, Sirius Black, Remus Lupin and Peter Pettigrew. Each of them has their own distinct personality. James is the confident and sometimes arrogant one. Sirius is the rebellious and charming one. Remus is the more reserved and intelligent one, and Peter is the rather meek and follower - type among them.
The main characters are Petunia, who is full of curiosity and resentment towards the wizarding world at the same time. And the Marauders: James, who is always up for an adventure and a bit of a show - off. Sirius, who is the wild card, always ready to break the rules. Remus, the brains and the more empathetic one, and Peter, who might be a bit of an enigma as he is the least explored among the Marauders in this context of meeting Petunia.
Another plotline could involve Petunia getting involved in one of the Marauders' adventures by accident. Maybe she stumbles upon them while they are exploring a secret part of Hogwarts and has to work with them to get out of a tricky situation.
Well, the main ones are Draco Malfoy and Harry Potter. Draco, who has his own journey of redemption in some of these fanfics. Harry, who is always the key figure in any story related to Hogwarts. And then there are the Marauders. James, the confident and sometimes arrogant Gryffindor, Sirius, the rebellious and loyal friend, Remus, the calm and intelligent werewolf, and Peter, who adds an element of mystery and betrayal.
Well, obviously Harry Potter is one of the main characters. And then there are the Marauders: James Potter, Sirius Black, Remus Lupin, and Peter Pettigrew. They are central to the story as it's about Harry meeting them.
Obviously, Ginny Weasley is one of the main characters. She's a strong - willed and brave witch. The Marauders, which include James Potter, Sirius Black, Remus Lupin, and Peter Pettigrew, are also likely to be main characters. They are known for their mischief - making and loyalty to each other. Dumbledore might also make an appearance as he was around during the Marauders' time and would surely have some role to play if Ginny is interacting with that era.
Well, aside from Teddy and the Marauders, there could be other characters as well. Maybe some of Teddy's friends or classmates from his own time who are somehow involved in his journey to meet the Marauders. For example, if Teddy discovers a time - traveling spell in the library with the help of a studious friend. But the core characters would still be Teddy Lupin and the Marauders. Teddy is the link between the present and the past in this story, and the Marauders are the ones with all the stories and experiences from their time at Hogwarts.
Obviously, Albus Potter and the Marauders - James Potter, Sirius Black, Remus Lupin and Peter Pettigrew. There might also be some other characters like Albus's friends or professors who could be involved in the story.
Well, Petunia can be really well - written. If the author delves into her insecurities and jealousy towards Lily, and then shows how she reacts to James, it can create a very complex and interesting character. For example, a good fanfiction might show Petunia's internal struggle when she sees James' charm and popularity.
There could also be some minor characters from the Marauders' era that might become more prominent. For example, Lily Evans, Harry's mother. Her relationship with James and how she might interact with Harry in this strange time - traveling or spirit - meeting scenario could be really interesting. And then there are the Hogwarts professors from both eras that could be involved, like Professor McGonagall, who could either be a guiding force or be a bit skeptical of Harry's new interactions.
In some fanfictions, other characters like Dumbledore might also play important roles. He could be the one who arranges the encounter between Harry and the Marauders, either knowingly or unknowingly. And Hermione and Ron might also be involved in some cases, perhaps helping Harry understand the implications of meeting his father and his friends from the past.
Sirius Black is often really popular. His rebellious nature and his complex backstory make him a very interesting character to explore in this kind of fanfiction. He can be shown having interactions with new characters from the modern Hogwarts era.