This South African is known as the Blade Runner and made it to the semi-finals in the 400 metres sprint in the 2012 Summer Olympics. Pretty impressive, but even more impressive is that he did this with artificial legs. As a baby, Pistorius was diagnosed with fibular hemimila, and both his legs were amputated between the knees and the ankles. With his artificial legs, Pistorius was deemed eligible to compete in the 2008 Games, but didn't make the South African team. He became the first double leg amputee to compete in the Olympics at this year's Games.