America's Most Eligible Miscellaneous Characters

The good, the bad, and the almost irrelevant. They are the miscellaneous characters that are there to answer that one question, explain away that one plot hole, assist in adding development to that actually relevant character, or give that good (or bad) advice. We usually never learn their names. They are there and they are gone as soon as they serve their purpose often never to be seen again. They may not be the most memorable but definitely have a role to play.