Johan Liebert is a fictional character from the manga series Monster, created by Naoki Urasawa. He is a gifted and enigmatic individual, who appears as an almost mythical figure in the story. He has a delicate, aristocratic face and usually wears dark suits, usually black with a white dress shirt. His eyes are blue and he has light, sandy-colored hair. He has a calm and controlled demeanor, but is capable of extreme violence when provoked.