The other Avengers like Captain America, Iron Man, and Hawkeye are likely to be involved. They are her comrades, so they would be there to support her during her concussion recovery.
One possibility is that the story focuses on Black Widow's internal struggle as she tries to get back to her normal self after the concussion. She might have to face her own fears and insecurities, and the other Avengers could play different roles in helping her through it. For example, Captain America might offer her words of encouragement, while Tony Stark could use his technology to monitor her recovery. And Hawkeye could be there as her old - time friend to cheer her up. The story could also involve some villains trying to take advantage of her weakened state, which would add some action and suspense to the fanfiction.
In addition to the ones mentioned, Dumbledore could be a character in the fanfiction. He might try to temper Sirius's thirst for revenge and guide him towards a more just path. On the enemy side, Peter Pettigrew would be a central figure. Since he was the one who really betrayed James and framed Sirius, Sirius would likely be out for revenge against him. And Bellatrix Lestrange, as a prominent Death Eater, would also be a likely target for Sirius's revenge.
Well, in certain fanfictions, Black Widow's concussion could result in her having vivid and strange dreams. These dreams might be related to her past, like her time in the Red Room. It could be a way for the author to explore her backstory further. And it might also make her more cautious in future missions, as she realizes how a head injury can affect her performance.
Well, Ron is a given. He's Hermione's significant other, so he'd be deeply involved in the whole process. Luna Lovegood might also make an appearance. She has an unique perspective and could bring some calmness and different kind of support. And don't forget about Hagrid. He has a big heart and might come to offer his congratulations and well - wishes in his own, endearing way.
Other characters like Ginny Weasley could be part of 'hermione fails' fanfiction. Ginny might be Hermione's confidante when she fails in a relationship, offering advice based on her own experiences. Neville Longbottom could also be involved. He could be in a situation where Hermione fails to recognize his potential or she fails to help him when he needs it most. And of course, the Weasley twins, Fred and George, could be involved. They might use Hermione's failure as inspiration for one of their pranks or they could be the ones to cheer her up in a humorous way after she fails something important.
Often, characters like Hawkeye might be paired with her. Their long - standing friendship in the original Marvel universe could translate into an interesting dynamic in the fanfiction. He could be someone who helps her adjust to her new form, or they could go on adventures together with her new - found size being an advantage.
The SVU team members like Fin Tutuola and Elliot Stabler are likely to be involved. Fin might use his street - smart skills to track down leads. Elliot, with his deep understanding of Olivia, could be the one who figures out the kidnapper's motives. Also, Captain Cragen would be there to lead the investigation, coordinating resources and making tough decisions.
Sasuke could be involved. Since they have a complex relationship, Sasuke might either be a rival during Naruto's training, pushing him to be better, or he could end up joining Naruto in some training sessions to become stronger together.
The Lone Wanderer is likely to be involved. They have a pre - existing relationship with Amata from the game. Her father, the Overseer, might also play a role, either in supporting or opposing the situation. Other characters from Megaton or Tenpenny Tower could potentially be involved as well.
Magnus Bane could be involved. He has knowledge of both the magical and vampire worlds, so he could offer advice or help. Clary Fray might also be there, as Isabelle's friend, she would be supportive during the pregnancy. And of course, Simon, who has his own connections to the vampire world through Raphael.