What qualities annoy you most about a character? (Appearance or personality)

Is there a specific type you always loathe, no matter what fandom you're in?

My answer to these questions is the same; the genius, always right character who avoids any consequences for being a dick. My rage at these characters is so great that I cannot watch the original NCIS, Sherlock, and the second Downey Sherlock Holmes movie makes me want to murder someone.

Basically, I am not a big fan of karma houdinis.