The Glory Funhouse Mirror

Kind of like an optical illusion, but not optical.

The one who makes another person they often spend time around look better. This second character might be similar to the Main, but is worse in comparison, as if to have the audience say "This guy's bad, but he could be a lot worse" and take more of a liking to the Main. The Glory Funhouse Mirror can come in many different forms: an Idiot, Useless Secondary, Rat Bastard, and Loser just to name some. Although a Glory Funhouse Mirror is comparitively worse than the one they're associated with, they're not necessarily guaranteed to be a bad person. They could just be a Weirdo or Wimp whose lifestyle is found to be strange, disgusting, or pathetic by others. These kinds of Glory Funhouse Mirrors can double as Comic Reliefs who play off of other characters to cause the audience to laugh through their antics.