One great 'Underworld Marcus OC fanfiction' could be about a new character who is a powerful vampire with a unique origin story related to Marcus. Maybe they start as an enemy but end up becoming an ally in the complex world of the Underworld.
First, think about the character of Marcus. Understand his traits, powers, and his role in the Underworld. Then, create your OC. Decide on their species, like vampire, werewolf, or something new. Make sure their personality is distinct.
Marcus Luttrell is a Navy SEAL. He is the central figure in his own story. He was part of a special operations mission and became the sole survivor of a tragic event during that mission.
Marcus and Dom could be two friends who had a very eventful relationship during their lives. Maybe they were soldiers together, or they grew up in the same neighborhood and had many adventures.
In the Legend of William Tell, William Tell was a brave Swiss man. He was known for his amazing crossbow skills. He was put in a difficult situation by the Austrian authorities where he had to prove his skill by shooting an apple off his son's head. His actions later led to a revolt against the Austrians.
In many 'Harry Potter Marcus Flint fanfic', he is often paired with other Slytherin characters like Draco Malfoy. Their similar Slytherin traits and shared experiences in the house make for an interesting dynamic. Another common pairing is with Pansy Parkinson. Their relationship can range from a simple acquaintance to a more complex romantic or competitive one.
Marcus may also face challenges from society. People might gossip or be judgmental about the situation. For instance, if Marcus has a certain reputation in the community, this new revelation could affect how others view him.
Another possibility is that a mysterious figure from the past comes back into Marcus's life. This person knows the secret and decides to reveal it to Marcus, leading to the discovery that he is Bella's father. For example, an old friend or a family servant who has been keeping the secret for years.