John Eckhardt Jr, (August 27, 1911 – January 5, 1991), professionally billed as Johnny Eck, was an American freak show performer in sideshows and a film actor. Born with sacral agenesis, Eck is best known today for his role in Tod Browning's 1932 cult classic film Freaks and his appearances as a bird creature in several Tarzan films. He was often billed as "The Amazing Half-Boy", "King of the Freaks" and "The Most Remarkable Man Alive".

Besides being a sideshow performer and actor, the multi-talented Eck was also a folk artist (specifically a screen painter), musician, photographer, illusionist, penny arcade owner, Punch and Judy operator, and expert model-maker. Description above from the Wikipedia article Johnny Eck, licensed under CC-BY-SA, full list of contributors on Wikipedia.