Karlheinz is incapable of affectionate feelings and doesn’t understand love at all even for the frames of his demonic sub-species. Karlheinz views his wives as test subjects for his experiments in creating a new race, and also his sons from them too. Being extremely intelligent and powerful and lacking deep feelings of affection towards anyone, he has no remorse at all while using his family and hurting them. At the same time, he can feel confused and can show hesitations if his experiments.