Obsessive might not be a strong enough word

Last night I dreamed that I saw a tweet on Tumblr from an upcoming guest star on [Poll #1877672]

And what role would you want her to plan in the story going forward?  Ally?  Villain?  Little bit of both?  Human?  Demon?  Sex partner?  Love interest?  A combination thereof?

My little brother, the peanut gallery, chose Ruby, "because she has the coolest name.  And she's a wolf."

(He's thinking of a different Ruby.  That Ruby is also quite wonderful.)