I really like changelings and sirens.
Son of a good man, child of an angel, & brother of a Wild One! ‘Nuff said.
The window through which we perceive life is what defines our experience of it. We are only aware of a small fraction of what our senses pick up. We can all choose how we see the world.
It's one thing to create/throw already-established characters in a story of some kind. It's another thing to develop those characters, regardless of the situation they're in.