Mark Antaeus was the son of a scientist who injected him with experimental growth hormones giving him super-human agility, strength and endurance. Mark Antaeus looked up to Superman to the point that he had a large 'S-shield' tattoo across his back. Sadly when he found out he couldn't help a struggling country, he went on a rampage, thinking he was helping. When he found out this had done more harm than good, he committed suicide.