The American Ghoul of Antonio originates in Virginia and joined the circus 1894 during travelling in Europe. Due to his extraordinary skills with machines and tools the inventor, in league with The Scientist and The Building Crew, is in charge of all technical appliances in the circus. A few of his most practical accomplishments are motorized Busses for all members and a self-unfolding circus tent that needs just the help of a few skilled helpers. Personally Harold is a quiet but visionary man, always thinking about new technologies. In spite of his solitary behavior he is widely liked by all members.