Not sure if this was as popular as other Adult Swim stuff like Venture Brothers, but it does have a superhero and villain. I can't believe I've only just discovered this while digging around for the new Archer episodes.
They even feature Mego-like action figures in the episodes themselves! (check out as they swap the heads in the sweatshop episode)
Awesome X should come with both a superhero outfit and alter ego tux for Xander Crews.
Killface and his son would be a perfect opportunity to use the new white muscle body and the kid body.
Plus these guys would be cool.