Karl is depicted as a man who is sympathetic, and possesses polite manners when he meets people and opponents alike. However, this masks his true, darker nature as a liar with traits that fit for typical yangires that is immediately revealed once his foes are distracted: Karl is manipulative, psychopathic, murderous, and often if not always, unpredictable.
Karl ; Height. 5"10 ; Weight. Heavy ; OCT. Law of Talos ; Character Type. Competitor ; Status. Deceased (Unknown's canon). 
Kills people!!!