Inverse Shadow Spotlight

I’m trying to make a simple, circular shadow for my character. The spotlight, I have noticed, has a perfect effect, when I attach it to my character it acts exactly how I’d like it to only I can’t make it dark, obviously. Is there any way I can edit the spotlight to be able to cast the opposite of a light, or is there other ways I can achieve the shadow effect I am looking for?

[838-light+shadow+eg.jpg|838]

What I believe you’re looking for is called a projector.