Wow no one has mentioned Trekkie Monster, that was my first impulse when I read this thread title! That's right, my favorite is the monster who is addicted to porn, needs grammar lessons, and looks like Chewbacca. My second favorite is Nicky because "If You Were Gay" is such a hilarious song, and very catchy too!
Dean: Can I tell you something?
Lorraine: That depends on what it is.
Dean: I think you're really really pretty.
Lorraine: (after a pause) Ok, you can tell me that.