There could also be other side characters. For example, a maester who discovers the existence of the bastards and decides to either protect them or use them for his own gain. Maybe a knight who becomes their protector, teaching them how to fight and survive in the cruel world of Westeros. And of course, there would be the enemies of the bastards. People who fear their existence and what they might do once they come into power, like some of the other noble houses in King's Landing.
Well, there would obviously be the bastards themselves. They could be given names like Joffrey Jr. (even if it's just a fan - given name), a son who has all of Cersei's cunning and a thirst for power. Then there could be a daughter named Myrcella - like, after the real Myrcella but with a different personality. She might be more fierce and independent, not willing to be a pawn in the political games like the original Myrcella.
A possible character could be an old servant who knew Cersei when she was pregnant with the bastards. This servant could have some crucial information about their birth or their father's identity. There could also be a self - made merchant who befriends the bastards and uses his wealth and connections to help them in their endeavors. And don't forget about the potential love interests for the bastards. They could fall in love with commoners or other nobles, which would add another layer of complexity to their stories.
Some of the more independent lords or ladies in Westeros could be allies. For instance, Lady Brienne of Tarth. She is a paragon of honor and if the bastard displays honorable intentions, she could offer her sword and protection. Also, the wildlings might see the bastard as a way to gain some influence in the south. If the bastard offers them something in return, like a place to settle or resources, they could form an alliance.
There's also a possibility of her allying with some of the more neutral houses. Houses that were tired of the constant fighting between the big players. Her daughter could offer them stability and protection in exchange for their loyalty. She could present herself as a new hope for a more peaceful Westeros, which might attract these houses to her side.
One possible plot idea could be that Cersei's bastards grow up in secret and form an alliance to take revenge on those who wronged their mother. They might use their wits and hidden identities to manipulate the power dynamics in King's Landing.
Some of the secondary characters could include those who interact with the bastards. It could be a mentor figure, an old knight who takes one of the bastards under his wing and teaches him the ways of war and honor. Or it could be a love interest, a noble lady who falls for one of the bastards despite the social barriers, adding a romantic sub - plot to the story.
Sansa Stark could be an interesting pairing. It could be a story of two strong - willed women from opposing sides. They could either become bitter enemies or, in a more creative take, find common ground and form an unexpected alliance. Also, Margaery Tyrell is a great character to pair with Cersei. Their power struggle in the show was fascinating, and fanfiction could take it in new directions, like Margaery actually befriending Cersei and showing her a different way to rule.
Jon Snow is always a memorable character in Battle of the Bastards fanfiction. His leadership and determination are often central to the stories. He is the one leading the fight against Ramsay Bolton, and his actions and decisions drive the plot forward. Another is Ramsay Bolton himself. His cruelty and cunning make him a very interesting character. In fanfiction, his devious plans and his attempts to outwit Jon are often explored in more detail.
Cersei herself is often well - written in fanfiction. Writers can explore her complex personality further, showing her vulnerability behind her cold and calculating exterior. They can also expand on her relationship with her children in ways that the show might not have fully explored.
In some fanfiction, Jaime's character might develop into a more remorseful figure. His relationship with Cersei could be a source of internal conflict, and he could start to question his loyalty to her more deeply, leading to a change in his actions and decisions.
Often, they are portrayed as outcasts trying to find their place. They may be angry at the world for their status.
Well, one key element could be the complex characters. In fanfiction, authors often explore the backstories and motives of the bastards in the Game of Thrones universe more deeply. Another element might be the power struggles. Since the original series is full of political intrigue, the fanfiction could expand on how the bastards navigate these power - hungry environments. And of course, the setting. The harsh and vividly described world of Westeros in the original serves as a great backdrop for the fanfiction to unfold its own tales.