He could play the role of a master strategist. Thrawn's ability to analyze his opponents and predict their moves would make him a valuable asset to any side in the 'Game of Thrones' power struggles. He could be the one to turn the tides in battles and sieges.
She could be a healer. With her knowledge of medical ninjutsu, she could save many lives in the war - torn Westeros. This would make her a valuable asset to any side she chooses to support.
Wolverine might be a disruptor in the Game of Thrones world. He doesn't follow the same rules as the Westerosi. His presence could change the way battles are fought. For example, in a large - scale battle like the Battle of the Bastards, his individual combat skills could turn the tide. He could cut through enemy lines with his claws and inspire the troops he's fighting alongside. He might also be a voice of reason among the power - hungry lords, as he has his own sense of right and wrong that is different from the political games in Westeros.
He could be a heroic figure. For example, he could be like a knight - errant, traveling around Westeros and helping those in need. His swordsmanship, which is quite different from the traditional Westerosi style, would make him a unique combatant.
Rome could play the role of a mysterious foreign power. It might send envoys to the Seven Kingdoms to form alliances or gather information. This would add an extra layer of diplomatic intrigue to the story.
In a Game of Thrones fanfiction, Hermione might play the role of a disruptor. She's not from that world and has different values. Her presence would disrupt the status quo. For instance, she would not tolerate the way women are often treated in Westeros. She'd speak up and fight for equality, which would put her at odds with many of the traditional lords. At the same time, her magical abilities would make her a force to be reckoned with, so she could start to change things whether the people in Westeros like it or not.
Hulk could be a protector of the Wall. Instead of the Night's Watch, he stands guard against the White Walkers. His strength would be a great asset against the undead hordes. He might not understand the politics of the Seven Kingdoms, but he knows when something is a threat. And the sight of a giant green monster fighting off the White Walkers would be an amazing addition to the Game of Thrones lore. He could also form an unlikely friendship with some of the members of the Night's Watch, like Jon Snow, who would respect his power and his simple sense of right and wrong.
They could be traders. Bringing unique goods from their own lands, like fine wines, silk, or advanced metalwork. Their arrival could disrupt the existing trade routes and economies in Westeros.
One way could be to make him a powerful foreign invader. He could bring his strategic military mind to Westeros, leading a force that challenges the existing powers. His unique tactics and ability to read his enemies would shake up the political and military landscape of the Seven Kingdoms.
It can also be a place of magic and mystery. In many fanfictions, the Godswoods are the source of strange and powerful forces. Writers might create new creatures or powers that are linked to the ancient trees and the old gods worshiped there. For example, there could be a magical well in the Godswoods that has the power to heal any wound, but only if the person is pure of heart. This adds an element of fantasy and intrigue to the already rich world of Game of Thrones.
Hashirama might become a powerful ally or a feared enemy in the Game of Thrones fanfiction. If he aligns himself with a certain house, his powers would make that house very difficult to defeat. He could also be a lone wanderer, using his skills to help the common folk. For instance, he could use his wood - style jutsu to create shelters for the poor or to clear paths in the forest for travelers. He would be like a force of nature in the world of Westeros, disrupting the normal power dynamics.