Nora is Nathan's handler or "Angel" in the afterlife at Lakeview who develops feelings for him and eventually helps him uncover a series of conspiracies and issues, assisting with looking into his mysterious death from the real world.
Nathan: We're equals now. You're not my angel anymore. You're still my angle.
Nora: OK, you're not a prince, even though you are my prince.
Nathan: I had a one-night stand with a Brazilian model. Sorry.
Nora: Yeah, Brazilians make the best lovers.
Nathan: Wait, what?