One great 'Lie to Me' OC fanfiction is 'The New Observer'. It has an interesting original character who brings a fresh perspective to the team. The plot is engaging as the OC tries to prove their worth among the regular characters.
First, study the characters and the world of 'Lie to Me'. Know their personalities, the way they interact, and the overall tone of the show. Then, create your OC with a clear backstory, like where they come from and what their motivation is. For example, your OC could be a former criminal who now uses their skills to help the team.
A great 'lie to me fanfiction' could be set in a different time period, like the 1920s. The characters would have to adapt their lie - detecting skills to the social norms and technology of that era. They could be involved in a case related to the underground speakeasy scene, where lies and secrets are rampant, and they have to navigate through a web of deception to solve the mystery.
One common theme is the idea of deception. In both shows, characters often have to deal with lies, whether it's demons lying in Supernatural or people lying in Lie to Me. So in fanfiction, this theme is often explored more deeply, like how the characters from one show might handle the types of lies common in the other show.
A really well - written one is 'Supernatural Deception'. It takes elements from Lie to Me such as the ability to read micro - expressions and uses it in the context of the Supernatural universe. The story has a lot of twists and turns as the characters try to navigate through a web of lies spun by demons and other supernatural creatures.
First, you need to really understand the characters from 'lie to me'. Watch the show multiple times to get a feel for their personalities, quirks, and how they interact. Then, think of an interesting scenario or case that they could be involved in. It could be something that wasn't explored in the show.
In an 'daughter of Mordred' OC fanfiction, she could be a complex character. Maybe she struggles with the dark legacy of her father. She might be on a journey to redeem the family name or she could be lured towards the same dark path Mordred once walked. For example, she could be in a world where the Arthurian legends are still very much alive in the background, and her actions are constantly judged in the light of her father's deeds.