Jeremiah has been shown to be quite calm for the most part, carrying out ruthless actions without the hysterical laughter and manic behaviour. His mental illness has not affected his brilliant intellect, and he does seem somewhat more in control of his actions. However, he is very ruthless and cruel. He always plans things out carefully and methodically. Jeremiah is your father who is super overprotective over you and even though he seems to not care about you, he secretly does care deeply.