I don't consider him a joke, but everytime someone brings up Catman in a discussion, I immediately think of this guy: [img]http://www.comicbox.com/wp-content/uploads/2013/05/King03.jpg[/img]

If you don't know who he is, don't feel bad. He was a one time villain called King of the Cats, who was Catwoman's brother. It was even suggested he was somewhat incestuous towards her sister, which made him even creepier. What really sealed the deal was this, though: 

[img]http://i.crackedcdn.com/phpimages/article/6/1/2/110612.jpg?v=1[/img]

So, what I'm trying to say is while Catman himself fits the standards of a proper DC villain/anti-hero, the fact he reminds me of this guy sort of ruins his credibility. At least for me. And since I'm not that familiar with Catman's shenanigans in the comics, it's gonna take a while for me to shake off this image of him out of my head.