Typically, it would be Chloe Mills and Bennett Ryan. Chloe is a strong - willed character, and Bennett is a rather complex and often difficult man in the story. In the fanfic, other characters from the original story might also play important roles, such as their colleagues or friends, who can either support or create obstacles for their relationship.
It's hard to say exactly without reading the fanfic, but it could be the bastard character themselves. Maybe they are the central figure around which the whole story unfolds. There might also be other important characters like the lord or lady of Winterfell who have an impact on the bastard's life, either by showing kindness or being cruel.
I don't know the exact main characters since I haven't read it. But it could be the 'bastard' character from the title and perhaps someone who is related to the blade, like a maker or a previous wielder.
Since it's a 'Twilight' fanfiction, it probably still has Bella and Edward as main characters, but they might be portrayed differently. There could also be new characters introduced that are central to the 'beautiful bastard' aspect, like a vampire who has a more rebellious and less noble nature compared to the Cullens.
In the 'Beautiful Bastard' novels, the main male character is often a powerful and somewhat arrogant figure in the business world. He has a certain charm despite his flaws.
The main character is the young girl. And her mother and stepfather are also important characters as they play significant roles in her difficult life.
I don't know as I haven't read it. But typically, the main character would be the abandoned bastard of the royal family. There might also be other royal family members like the king, queen, princes, or princesses who play important roles in the story.
In fiction, characters like Thor from the Marvel universe are very strong. He wields his enchanted hammer Mjolnir and has the power of lightning. He has faced many powerful enemies and held his own. Then there's Hulk. His strength increases as he gets angrier, and he can smash through just about anything. In the world of Middle - earth from Tolkien's works, Morgoth was an extremely powerful character in the lore, though he was ultimately defeated. But his power was such that he could cause great destruction and corruption.
One of the strongest characters in fiction is Superman. He has superhuman strength, can fly, and has heat vision among other powers. His abilities make him extremely formidable against almost any foe.
It really depends on the specific fictional universe. In superhero comics, characters like Superman and Thor are often considered among the strongest. But in fantasy worlds, maybe characters like Gandalf or Dumbledore take the lead.