Karl's a loud, boisterous individual who's considerably affable in social gatherings; he appears to be good friends with Patrick Phelps. Additionally, Karl seems to be well-informed about distinguished individuals, having showcased great knowledge about Charles Grey. Arthur Conan Doyle identifies him as a man who displays his wealth through his jewelry. Though ostensibly amiable, Karl is actually a very hotheaded and impetuous individual, who's liable to impulsively incriminate others and hastily reach unwarranted conclusions as long as he can prove his own innocence in dire situations. When he feels vulnerable, he adopts a belligerent mentality, willing to physically lash out at anyone - even someone as young as Ciel. Furthermore, Karl's immoral and depraved, especially when it involves commercial business; outwardly, he runs a diamond polishing firm, but secretly illegal weapons. He also works to obliterate his business rivals behind the scenes. Additionally, Karl is a strong advocate of the advancement of technology in society. He firmly repudiates the chances of "occult" and "unscientific" things happening in the nineteenth century.... HAIR COLOR
black (graying)