The main character would be Harry, no doubt. But in addition to him, there could be new characters created specifically for this fanfiction. Maybe there's a mysterious figure who has the power to manipulate time and is responsible for Harry's time - out. And Harry's family members, such as his parents in the form of memories or ghosts, could also be important characters in this story, guiding Harry through his time - out experience and helping him find his way back to the real world.
The 'Harry Forgotten in Time - out' fanfiction could potentially tell a story where Harry is removed from the normal flow of time and forgotten by those he loves. It may start with an event that causes this time - out, such as a battle or a magical experiment gone awry. While in this state, Harry could be forced to relive some of his worst memories, but also find the strength within himself to break free. He might have to solve a mystery related to how he got into this time - out in the first place, and in the process, he may form new alliances or learn things that change his perspective on the wizarding world.
There might be some new characters created specifically for this fanfiction. They could be people or creatures that Harry meets during his time of being forgotten and they play important roles in his journey. For example, an old wizard living in seclusion who takes Harry under his wing and teaches him things he wouldn't have learned otherwise.
Obviously, Harry Potter is a main character. He's the one who has been forgotten by his parents. His friends Hermione and Ron might also play important roles as they usually do in helping Harry through his difficulties.
Well, Harry Potter himself is surely one of the main characters as the title implies he has the power to control time. Hermione Granger is likely to be another main character. She is always by Harry's side in the original series and would be there to help him understand and manage his new time - controlling ability, perhaps with her vast knowledge and logical thinking.
I don't know for sure as I haven't read it. But it could be the main RWBY characters like Ruby, Weiss, Blake, and Yang. They might be the ones who get involved in the mystery of the forgotten gods.
The main character is surely the forgotten son. But we can't rule out other important characters. Sakura could be in the story, maybe she discovers some clues about the forgotten son. And Sasuke might also be involved, as he has a long - standing relationship with Naruto. Their children could also interact with the forgotten son, adding more layers to the story. Additionally, there could be some new characters created specifically for this fanfiction, like a wise old hermit who guides the forgotten son on his path.
The main character is Percy. However, in the fanfiction, there could be a new character created specifically for the story, like a young apprentice of Percy who has a unique ability. There may be an old and wise god who has some secrets about Percy's past and is reluctant to share them at first. Also, there could be a group of demigods who are initially skeptical of Percy but then come to believe in him and join his cause as he tries to reclaim his position among the gods.
Since I don't know the specific fanfiction, it's hard to say. But it's likely to include the forgotten doctor, and perhaps some Naruto characters like Naruto himself, Sasuke or Sakura who might interact with the doctor in some way.
Ash is the central character in 'pokemon ash forgotten fanfiction'. Alongside him, Pikachu is almost always important as it's his closest companion. There may be other trainers or Pokemon that have a special connection to Ash. For example, Misty or Brock might be involved if the story takes place within the context of the original series and they are some of the first to notice something is wrong with Ash or they might also be affected by the forgetting phenomenon. And there could be some antagonist characters who are responsible for Ash being forgotten in the first place.
It could be two best friends. They've been through a lot together and the forgotten promise between them creates a rift that they need to overcome. For example, they might have promised to always be honest with each other, but one of them broke it unknowingly, leading to misunderstandings.