Goatboy, also known as The Amazing Goatboy, is a fictional carnival sideshow performer and a minor character featured in comic book titles published by DC Comics. He is associated with the "New 52" continuity, and first appeared in Harley Quinn, Volume 2 #7 in August, 2014.
Little is know about Goatboy, save that he looks like a goat-faced cryptid, and appears to be some sort of human oddity, likely working out of Coney Island in Brooklyn. He lived in the same run-down apartment complex as Harleen Quinzel. Other tenants in the building included Madame Macabre and Big Tony.
One evening, Goatboy was enjoying a dinner of sawed open aluminum cans, when an incident took place in the apartment above him. A member of the Brooklyn Assassin's Guild (B.A.G.) named Jerry burst into the apartment of Harleen Quinzel with the intent of killing her. During the ensuing firefight, Jerry's assault rifle shot through the floor, causing dirt and debris to fall down upon Goatboy, to which he irritatingly responded with, "Bah!". (Harley Quinn Vol 2 7)