In Game of Thrones fanfiction, Alvyn of Oldtown could be an original character created by fans. He might be a maester - in - training at the Citadel in Oldtown, full of knowledge and eager to make a name for himself in the complex world of Westeros politics and power struggles.
He may be a young and ambitious scholar in Oldtown. Fanfiction might portray him as having a special talent, like being able to decipher ancient texts faster than anyone else. This ability could lead him into all sorts of adventures, such as finding clues about the origin of the White Walkers or getting involved in the power games among the lords of Westeros.
One interesting aspect could be Alvyn's role in the political intrigue of Oldtown. Maybe he's involved in the machinations within the Citadel, like uncovering secrets that could change the power dynamics in the Seven Kingdoms. He could be a key figure in the fight against the White Walkers, using his knowledge from the Citadel to come up with strategies.
One of the most popular assassin characters in Game of Thrones fanfiction is Arya Stark. In the original series, Arya has assassin - like training in Braavos. In fanfiction, her skills are often enhanced and she is sent on all kinds of secret and dangerous missions. Another could be Jaqen H'ghar. His mysterious nature and assassin skills make him a fascinating character to explore further in fanfiction. He can change his face, which adds an extra layer of intrigue to his character in fan - made stories.
I think it could be the blacksmith OC who has a strong moral code. For instance, an OC who refuses to make weapons for evil lords or sells his work only to those who he believes will use it for good. This type of character adds depth to the fanfiction and can be very appealing to readers who like complex and morally upright characters.
In many Game of Thrones fanfictions, there are different ideas about the true heir. It could be a long - lost Targaryen descendant who was hidden away. For example, some fanfictions might present a character who is revealed to be the child of Rhaegar Targaryen and Lyanna Stark, and thus has a strong claim to the Iron Throne as a true heir.
Another great option could be a new character, like Thoren. He was born into a family of blacksmiths, so he had easy access to different types of swords. He experimented with different blade weights and lengths, which gave him an edge in combat. He has a reputation for being able to use any sword effectively and can switch between different styles mid - fight. This adaptability makes him a formidable swordsman in the fanfiction world.
The Mother. In the existing lore, she is a major figure. In fanfiction, she could be more actively involved in the events of Westeros. She could be a guiding force, using her powers to heal the sick and wounded, and trying to prevent the bloodshed that is so common in the Game of Thrones world.
It could be a new character created specifically for the fanfiction. This character might be an outcast from a noble house who receives the call and is thrust into the center of the power struggles in Westeros.
Often, the Gravewalker themselves is a main character. They usually have a mysterious past and special abilities. There could also be characters from the original Game of Thrones series who interact with the Gravewalker. For example, Jon Snow might cross paths with the Gravewalker and they could form an alliance or be at odds. Daenerys could also be involved, perhaps seeing the Gravewalker as a threat to her claim to the Iron Throne.
In some fanfictions, Jon Snow could be a central figure when combined with the angel elements. Imagine an angel bestowing upon Jon some new powers or knowledge that helps him in his fight against the White Walkers. And there could be a female angel character who has a special bond with Jon, guiding him not just in his battles but also in his personal growth as a leader.
There's also a possibility that Itachi would remain neutral for a long time. He would observe the different players in the Game of Thrones, much like he observed the events in the Naruto world. Only when he sees a real threat to the greater good would he choose a side.