The Vermin

That guy.

The one nobody wants to be around because of how undesirable they are. Being the familiar counterpart to the Pest, the Vermin is viewed as an antipathy that anyone in their "friend" circle, likely the Main Cast, will secretly avoid as to not hurt their feelings. Because of this, the Vermin is completely oblivious to the fact that nobody really likes them. As a result, they will continue their terrible behaviors, which then continue to get on the nerves of everyone around them. The most common kind of Vermin is the one that manages to annoy everyone on a regular basis. Other varieties of Vermin are boring, pathetic, exceedingly strange, or have poor hygiene.