What kind of supervillain are you?

I got this idea for something to write last week and I've been just seriously, um, thinking about it, trying to work out every single thing in it plot wise and all that. Don't know if it will ever go anywhere, of course, but here's what it got me thinking about.

See, there's got to be a villain in it. And as it happens given the story the villainess I'm using naturally appeared in my brain. She needs something to be after, of course, and given the story obviously this villainess is after eternal life--and eternal youth. ( And that made me think about exactly how many other things a supervillain can be after... )