1. Mr. Mind
A very dangerous DC villain,.......who looks so adorable. Something that obviously looks like a cartoon, Mister Mind here sadly gets the footbal treatment when being compared to the likes of Lex Luthor or even the Joker.
2. Mr. Mxyzptlk
What's more interesting is how to pronounce his damn name right. Aside fom that, this villain of curiousity has sadly proven to a major threat for Superman (despite his godlike powers)and put shame onto the Superman rogues gallery.
3. Howard the Duck
As if Marvel truly needed their own Donald Duck. But a hero of curiousity, we all love Howard when he's quack-fuing and duck biting alongside with Spiderman. Sadly there isn't enough Disney business for Howard when the Marvel Universe is facing one of it's continuous crises. Imagine Howard in a "serious" storyline where he fights against somebody like the Red Skull, and see if you don't find yourself laughing when Howard Quack-fu's Red Skull.
Possibly the most famous, annoying, and greatest badass that nobody can't take seriously. Deadpool is always loved by many and personally I love this guy because of how he's immune to major screw-ups from certain writers and/or artists. The day Deadpool is taken seriously, would be the day that Marvel has killed off one of their most beloved characters
An EPIC legend of somebody who will never be taken seriously, Hypno-Hustler has always captured an audience with his ridiculous disco themed gimmick. One of those characters who we enjoy by not taking them seriously.