Villanious Habits

So a friend of mine is going to start GMing a D&D campaign, using a module that I helped him write about a year ago (Helped him by adding a few twists, it was mainly his work). Anyway, he decided to go back to this module, as an introductory module for the campaign while he creates the last bits of the world. He came to me for help with creating an NPC who hired one of the characters and who may become the villain.

        All I had to work from, was a line that sates that she's an elven duchess, who hired the character to be her spy and assassin, and of course the potential. From these things I came with four ideas, and somehow he preferred the fourth one...

So let's take a look the ideas:

1. A bitter ex-paladin, who lives under the impression that the gods have betrayed her. She now tries to find her new identity, while unintentionally goes to dark places. She is addicted to something (not a good thing, of course), and a few superstitions, that she tries to hide- she lives in a lie, trying to convince herself that it's not her who is guilty, and she almost managed in that. Almost, because then she met an anti-hero (who is based around Nicholson's character in Chinatown) who tries to fight crime by impersonating himself as a criminal, although he's too good in this job...
2. A woman from a good house, who got bored from the role of women in society. She was the perfect female role model- 6 children, a great cook... And she has had enough of that. In addition to trying to cope with what society expects from a woman of her standing, she tries to manage a secret identity of a sportswoman in a very dangerous sport: Chariot racing, using this to show that she's not a noble woman. Lately she found a new sport to try her luck within...
3. An old prophesy, from hundreds of years ago, stated that a noble woman will save the world. It also stated the date of her birth, which was just like the one of the duchess. But she's a clumsy woman who can't do a single thing on her own. She's full of herself, she talks a lot about how she's going to save the world, about her being the chosen one. Lately, to her ear came the whisper that there are a few other noble women with the same birth date...
4. There's nothing that equals a family event, except maybe the funeral of an enemy. Life in the highest ranks of society isn't easy, but without a doubt they aren't a challenge for her. She knows every trick of her enemies, and there is only one solution: making "holes" in the high ranks, so new, more interesting contenders will take the fallen ones' places. But "nobles- their work is done by others"...