Rod
The second child of Leslie and Frank, you know Uncle Frank who kind of picks on Kevin and the other kids. Anyways, Rod isn’t any much nicer to Kevin than some of the other family members are. In fact, we would say that Rod is the biggest jerk out of the rest of the kids.
He has a bit of an attitude and doesn’t even care that Kevin was missing when they left for their vacation. Now that is pretty low, you may not like your cousin but you can not deny the fact that they are family. Seriously Rod, what if that was you in his shoes?