Harry Potter himself is very likely to be one of the main characters. Since he's such a central figure in the series, it would make sense for him to be involved in a story where all three eras meet. Hermione Granger could also be a main character as her intelligence and knowledge of magic would be very useful in a situation like this. And perhaps Albus Dumbledore from an earlier era, as he is a very powerful and wise wizard.
Definitely Harry Potter. He has always been the hero of the original series, and his presence would be essential to bridge the gaps between the eras. Then there's Sirius Black. His rebellious nature and loyalty would add an interesting dynamic. And from the later era, Luna Lovegood. Her unique perspective on magic and the wizarding world could bring a fresh view to the interactions between the different eras.
I think Harry Potter, Ron Weasley, and Ginny Weasley are all likely main characters. Harry because of his fame and power, Ron for his loyalty and his more down - to - earth view of magic, and Ginny as a strong and independent witch. They could interact with characters from the other eras like Newt Scamander from an earlier time, creating a really interesting mix of personalities and magical abilities.
One interesting plotline could be the different magical techniques from each era being shared. For example, the older era might have some long - forgotten spells that the younger characters find fascinating and try to incorporate into their own magic. Another could be the cultural differences within the wizarding world across the three eras. Characters from different eras might have different views on things like house - elves or blood purity, leading to some intense discussions and possible changes in perspective.
Obviously, Harry Potter would be the main character as the title implies. But his friends like Ron Weasley and Hermione Granger are also very likely to be important characters. Since they've been through so much with Harry, they might be among those who are called upon to pay their debts, or they could help Harry in the process of calling in debts from others.
In this kind of fanfiction, Neville Longbottom could also emerge as a key character. He has shown great courage and growth throughout the Harry Potter series. When Hera enters the picture, Neville could be the one who has an unexpected connection with her. Maybe his family's long - forgotten magical heritage has some link to the Greek mythology that Hera represents. And then there are the Death Eaters. If the story is set during the darker times in the wizarding world, the Death Eaters might see Hera as a new threat or a potential ally, making them important characters in the fanfiction as well.
Obviously, Harry Potter would be one of the main characters. He's the central figure in the original series. And Ophis, as the other part of the fanfiction's title, would also be a main character. Her unique abilities and personality would play a big role. Hermione and Ron could also be important as they are Harry's closest friends and would be involved in any new adventures that come about due to Ophis's presence.
Harry Potter himself could still be a main character. He has faced many enemies and situations where he has to make tough decisions. In a 'no forgiveness' scenario, he might be more hardened and less likely to give second chances. For example, when dealing with Voldemort's followers, he could be more ruthless.
Definitely characters from both 'Charmed' and 'Harry Potter'. From 'Harry Potter', Harry, Hermione, and Ron are very likely to be main characters as they are the central figures in the original series. In 'Charmed', the Halliwell sisters, Prue, Piper, and Phoebe, would be prime candidates. Their different powers and personalities would create interesting dynamics when interacting with the 'Harry Potter' characters.
Hermione and Betty would be likely to interact. Hermione's intelligence and thirst for knowledge could pair well with Betty's investigative nature. They could work together to solve a mystery that spans both the wizarding world and Riverdale.
The Weasley twins, Fred and George, are the most likely characters to pull pranks. They have a natural inclination towards mischief and are always coming up with new and creative ways to play jokes on their classmates and teachers. Their inventions, like the Skiving Snackboxes, are often used in pranks.
They are likely to meet their future selves. This could be a very strange and enlightening encounter for both of them. They might also meet their descendants, like their children and grandchildren, which would be a heartwarming experience.
He could meet the local wizarding elders in Salum. They might be very wise and have a different way of doing magic compared to what Harry is used to.