An OC could fit in by having useful skills. Like being good at hunting or knowing how to make weapons. That would make them valuable to the group in the fanfiction.
Well, it could be really interesting. The OC might bring in new skills or a different perspective. Maybe they'd be a great fighter and help the group survive better, or perhaps they'd have some knowledge about a potential safe haven that no one else knew about.
It could be terrifying. They might find themselves in a post - apocalyptic world full of zombies. They'd have to quickly learn survival skills like finding food, shelter, and weapons. And they'd also need to figure out how to deal with the other survivors, some of whom could be dangerous.
A really interesting plot could be a character being transported into the game right at the moment when a major decision has to be made by one of the main characters in the game. The transported character tries to influence that decision, which has far - reaching consequences for the whole game world. They might have knowledge from playing the game that they think can save more lives, but things don't always go as planned in the chaotic world of The Walking Dead game.
I think a scientist would be really interesting. They could potentially use their knowledge to find a cure for the zombie virus within the game world. They might start by analyzing the infected and trying to figure out how the virus works.
A common theme is survival. The 'dead girl' often has to find ways to stay alive in a world full of walkers. Another theme is identity. Since she's in this strange state of being, she has to figure out who she is now.
Another possibility is Draco Malfoy. He was always in a difficult position, being from a Death Eater family but having some doubts. In this fanfiction, he could be in a situation where he's made some bad choices and now feels like he's a 'dead man walking' as he tries to find a way to make amends or escape the consequences. He has to walk a very thin line between life and death, both literally and figuratively in the wizarding world.
The tone can be different too. The original 'The Walking Dead' is mostly about survival and the dark side of humanity during a zombie apocalypse. But 'the walking dead lemon fanfiction' might add elements of humor or different kinds of relationships that are not as prominent in the original. For example, there could be more light - hearted moments between characters that contrast with the overall grimness of the show.
One interesting 'Dead Girl Walking' in 'Walking Dead' fanfiction could be the one where the character has a unique survival strategy. In many such fanfics, the 'dead girl' might be a new character who brings a fresh perspective to the post - apocalyptic world of 'The Walking Dead'.