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.
Most fanfiction is created by fans out of love for the original work, like Hellsing abridged fanfiction. Usually, the law is more concerned with preventing plagiarism and unauthorized commercial use. So, if you're just watching it for fun and not participating in any illegal distribution, it's likely legal.
The unique take on the original Hellsing story. Since it's abridged, it often condenses the plot in a humorous and sometimes unexpected way, which makes for an interesting read.
To create a believable OC, consider the setting of Hellsing Abridged. The world is full of vampires, ghouls, and powerful organizations. Your OC should fit into this world. They could have a connection to an existing faction, like being a rogue agent of Hellsing or a new recruit for the bad guys. Their appearance should also match the tone of the series. Dark, edgy, and maybe a bit of a gothic look if they are on the side of the vampires or vampire hunters.
You can try some fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions, and you might be able to find the 'hellsing watch hellsing abridged' fanfiction there.
In Hellsing Ultimate Abridged Fanfiction, it's a fan - created work that builds on the Hellsing Ultimate world. It could involve the same characters like Alucard, Seras Victoria, and Integra Hellsing. The abridged aspect means it may cut out some parts of the original story and add its own twists. Maybe it gives a different perspective on the battles between the vampires and the Hellsing organization. It could also introduce new dialogues that are full of inside jokes and references that fans of the original would appreciate.
It could make them more aware of different power systems. The Hellsing Abridged fanfiction has a complex power structure with vampires and vampire hunters. RWBY might start to think about how their own powers compare and contrast. For example, Ruby's scythe - wielding skills and semblance might seem different from the more supernatural powers in the fanfiction.
Another theme is the character crossovers. Writers like to put characters from RWBY and Hellsing in the same situation and see how they react. For example, Ruby meeting Alucard would be an interesting scenario. It's about exploring different personalities and how they would mesh or clash.
Well, I really like 'Hellsing Abridged: The Lost Chapters'. It has some great character interactions that are not in the original abridged series. There's also a fanfiction called 'Hellsing Abridged: Behind the Scenes' which gives a behind - the - scenes look at what could be going on in the abridged world. 'Hellsing Abridged: The Reckoning' is also quite good as it has an exciting plot full of twists and turns.
You can try some popular fanfiction websites like Archive of Our Own (AO3). It often has a wide range of fan - made works, including Hellsing abridged fanfiction. However, make sure to follow the website's rules and terms of use.