Obviously, Harry Potter is the main character as it's about him taking control. Hermione Granger is likely to be an important character as well, she would probably be by Harry's side, offering her intelligence and support.
One great 'Harry Potter Takes Control' fanfiction is 'The Power Within Harry' which shows Harry taking control of his destiny in a unique way. It has him making decisions that are different from the original story, like taking charge of his magical training earlier.
Obviously, Harry Potter is a main character as the title implies. But usually, his friends like Hermione and Ron are also likely to be important. They would be there to support Harry in his new role of taking control.
Well, in a 'Harry Potter takes control fanfic', it usually means that Harry Potter is portrayed in a more dominant or in - control role compared to the original series. Maybe he takes charge of situations earlier, or has more power over his destiny.
I'm not sure specifically which new fiction it is. But generally, such fictions might explore the strange and somewhat terrifying relationship between the fungus and the ants. It could be about the biological mechanisms the fungus uses to manipulate the ants' behavior, perhaps for its own reproduction or survival.
Obviously, Sirius Black is the main character. But there could also be other characters like Harry Potter, as Sirius has a strong connection to him. His friends from Hogwarts days might also make an appearance, such as James Potter in flashbacks.
The plot could be that in a family business, the little sister, seeing the business in trouble, takes control. She might come up with new marketing ideas, like using social media in a different way to attract more customers. For example, she could start a viral campaign that features the family's products in an interesting and unique way.
Perhaps Harry takes control in a way that he unites different wizarding factions that were previously at odds. He could use his influence to promote peace and cooperation among them, leading to a more harmonious wizarding world.
One of the best elements is seeing Harry's character growth. In many such fanfictions, he becomes more self - assured and decisive. For example, in 'Taking the Reins, Harry', he stops relying on others so much and starts to think for himself.