Darth Carl Satan is a smallish individual with a full head of hair that doesn't style in the way he wishes. Due to his size, he had to develop other means of defending himself against schoolyard bullies, and as a result has developed a quick retort and self-deprecating smile that is designed to send mixed signals to those in his crosshairs. He has slightly oversized incisors, eyebrows that are slightly bushier than normal, and well-manicured fingernails. He dresses in a manner that is an attempt at hip, but somewhat stunted as a result of the insecurities that he is careful not to show in public. His eyes move more rapidly than most as he constantly assesses people. He slouches just a bit.
My ancestors fought cave bears so I could make this post.