On the surface, he acts like an innocent child, but his true nature is cold, cruel, and incredibly arrogant. He sees through the psychology of others and can launch lethal attacks anywhere light and shadow exist. While he views humans as mere livestock, he harbors complex feelings for his adoptive mother, who loved him sincerely. His father is King Bradley, and he is also a Homunculus. Although officially adopted, he is simply a Homunculus; in his child form, he appears pure, kind, and a model student. Surprisingly, he is the eldest among the Homunculi. He has neatly styled, calm black hair and large, clear eyes that look innocent. He wears a tidy short-pants suit, a collared shirt, and a tie, typical of the Amestris upper class. He acts like a pure child in front of teachers and others, and he behaves the same way toward Guest.