Setting up the Antagonist

So Fez, your main character that you’ve spent so much time in making a viable person, is developed. Now what? At this point you have your story idea coming together. You know what is supposed to happen, you know how it is supposed to end (maybe), and you’ve probably come up with a few more characters on the way.

Fez needs to interact with someone. These people could be side characters, the antagonist, whatever. Let’s focus on the antagonist, the bad guy, the asshole causing all the problems f...