Antagonists or straight-out villains can be a real problem to write. Even authors I love often have difficulty with fleshing out antagonists and making them sufficiently believable. There are manifold reasons for this, and sometimes an author has more than one reason in effect which causes them to trip while trying to create a believable antagonist.One of the reasons, and one that has affected some of my own writing, is that if there are groups of antagonists, the protagonist may tend to see...