Fan Casting Ho Yinsen in MMU/1.: The Iron Man (2008)

Yinsen was a scientis, who was in captivity alongside Tony Stark by the Ten Rings. He was forced to work alongside Stark and build the Jericho Missile for the terrorist. He built the first prototype of the reactor which keeps Tony alive, and he helped to make the first Iron man armor too. While escaping, Yinsen gave his life to win enough time for Tony to survive.