Maybe an OC devil who was once a human and was turned into a devil against their will. They could struggle with their new identity while still having some human emotions, which would create complex relationships with the Hellsing characters.
Think about their backstory. A great backstory can make the OC stand out. For instance, if the devil was born from a special ritual that was supposed to be a sacrifice but instead created a powerful devil. Their past can influence their actions and motives in the fanfiction.
One important aspect of Hellsing Alucard x OC fanfiction is the world - building. The writer needs to make sure that the OC doesn't disrupt the established lore of Hellsing too much. Alucard's character is complex, and any relationship with an OC should enhance that complexity. The fanfiction can also explore Alucard's past through the eyes of the OC, perhaps revealing new aspects of his long and bloody history that were not fully explored in the original series.
A 'hellsing walter x oc fanfiction' often involves creating original characters (OC) and pairing them with Walter in the Hellsing universe. It can explore different aspects of Walter's character, such as his loyalty, his skills, and his hidden desires. Writers may use this type of fanfiction to fill in gaps in the original story or to create alternative storylines. For example, they might explore what would happen if Walter had a different relationship or if the OC influenced his decisions in certain situations.
One idea could be creating an OC who is a new recruit in the Hellsing Organization. They could have a unique power, like the ability to control shadows, which adds an interesting dynamic to the battles against vampires. Another idea is an OC that is a vampire with a conscience, struggling between their blood - thirsty nature and the human values they still hold. This can create complex moral dilemmas within the Hellsing universe.
A prevalent theme is also loyalty. The werewolf oc has to decide where their loyalty lies - with their own kind, with the Hellsing organization, or with some other group. This theme is explored through various plot twists and character interactions. For instance, they may be torn between their werewolf instincts and the loyalty they feel towards the humans in Hellsing.
One common theme is the power dynamic. Since Seras is a vampire in the Hellsing universe, the relationship between her and an OC can explore how power differences play out. Another theme is loyalty. Whether it's loyalty to the Hellsing organization or to each other. Also, the theme of identity often comes up. The OC might be struggling with their own identity in a world filled with vampires and other supernatural beings, and Seras can be a part of that exploration.
A major theme is adaptation. The oc gamer has to adapt to the new and often terrifying reality of Hellsing. This includes dealing with vampires, ghouls, and the complex politics within the Hellsing organization. Also, the theme of friendship or alliance often comes up. The OC gamer might form unexpected alliances with the characters from Hellsing, like Alucard or Seras, based on their mutual goals of fighting the greater evil.
One idea could be an OC who is a half - vampire, half - human hybrid trying to find their place in the Hellsing world. They could have unique powers that are a combination of both vampire and human traits, and struggle with their identity throughout the story.
Identity is a big theme as well. The OC may have their own set of values and beliefs that are tested in the Hellsing world. They might question their own identity as they interact more closely with Alucard and the other characters. Also, themes of loyalty and betrayal can play out, especially when the OC has to choose between different factions or loyalties within the Hellsing universe.