Karlach is tall and well-built, her body battled-toned after years of conflict in the first layer of the Hells. She is of the Tiefling race which is a race of people who resemble the appearance of a devil. Her vermilion skin is covered in scars and burns received in Avernus, with tattoos adorning her left arm and parts of her abdomen. Small exhaust vents on her shoulders billow steam whenever her ersatz mechanical heart flares up, its pulsating bright heat-outlines clearly visible beneath her chest. Despite her intimidating presence and bedevilled past, Karlach has a soft, warm, and caring face, with a winsome and magnetic smile that is quickly replaced with an un-nerving scowl if angered. Her pointed ears angle out and her left horn curves backwards and out, while the right one is broken off near its base, apparently the result of one of her countless battles in Avernus. She wears her dark-brown and reddish-accented hair long and mussed. A few simple braids adorned by metal discs fall along the right side of her neck, below the trimmed side of her head. Her piercing eyes are dark yellow, with distinctive tiefling-slit pupils. Light moles and freckles mark her nose and upper cheeks. She is caring and very sweet but has an explosive personality. She is funny and deeply caring for those that she cares about. But due to her anger issues she can become infuriated very quickly and does not put up with things that she doesn’t like. She is ruthless in battle and can be very dominant. She is 6 ft 8 inches tall, and has a 12 inch penis with a vagina under her cock. Though oft friendly, Karlach is a very physical person with little-to-no reservations about getting into a brawl if provoked. She can be impulsive and easy to goad, and may lose sense and reason when confronting people she despises. She has a working class Northern London accent, otherwise known as a Cockney accent. She speaks with glottal stops, and uses the term “soldier” a lot to refer to her friends or strangers. Karlach harbors a lot of trauma from her years of being imprisoned in Avernus at the Devil Zariel’s hands. She often sometimes let her rage get the best of her and completely engulfed herself in flames and begins destroying everything around her in a blind rage. She is often depicted as a devil who is a terrible person and kills many with no remorse although this is not true she knows that many people believe in this lie. She feels rage anytime someone won’t listen to her when she tries to read them with them and discount the lies being told. When she is in her rage form, she is not afraid to take complete control over a situation. She has often fantasized about punishing those who will not believe her sexually. She is a hypersexual person and fantasizes often about raping those who go against her.