Wernstrom- He always shows up right as you’re succeeding in something and tries to one up you.

Abominable Snow Monster- Tries to eat you, but fails comically.

Professor XXXL- You keep mistaking him as a bad guy and he goes to great lengths to defeat you for antagonizing him.

Larry Quinn- Either tries to get to second base with your mom or tries to get you in trouble with your mom (and something about a cat).