Iron Man (MCU)

Overview
He Lives! He Walks! He Conquers! Who is he? He is Tony Stark, billionaire industrialist and genius inventor who was kidnapped by those who sought to exploit his brilliance to create a terrible weapon. Instead, Tony Stark used his ingenuity to create a sophisticated high-tech armor to escape captivity, vowing to protect others as the one and only―the Invincible Iron Man!

In the 2008 live action Iron Man film, he is portrayed by Robert Downey, Jr. and is credited with launching the Marvel Cinematic Universe films; reprising his role in several feature films as well as making cameo appearances and guest starring in various others including The Avengers and Avengers: Age of Ultron.

Background
Based upon a Marvel Comics superhero who debuted in Tales of Suspense #39, published in March of 1963. Iron Man was created by Stan Lee, Larry Lieber, Don Heck, and Jack Kirby.

The son of capitalist and munitions manufacturer, Howard Stark; Tony would inherit his father's company after his death in his early twenties and would go on to transform it into an international juggernaut thanks to his brilliant and revolutionary weapons design. To demonstrate the efficiency of his weapons, Stark would accompany a group of soldiers equipped with his designs only to fall victim to a bobby trap that killed them all and left him nearly fatally wounded with shrapnel badly lodged in his heart.

Discovered by guerrilla terrorist leader Wong-Chu who sought to exploit his genius, Wong-Chu lied by claiming that he would only save Tony's life if he built him a powerful weapon. The canny Stark however realized that Wong-Chu was lying and that he was dying but agreed, hoping to buy some time and access to tools. Given a makeshift laboratory and scrap materials, Stark was aided by his fellow captive, a Nobel Physicist Professor Ho Yinsen who aided him in constructing a chestplate that would not only hold the deadly shrapnel in place but also act as an electro-stimulator to keep his injured heart beating.

However, the chestplate was only the central part of a bulky suit of transistorized armor containing an array of offensive weapons which the pair hoped to use to make their escape. But before the armor was finished charging, Yinsen and Stark learned that Wong-Chu was on his way to examine their progress. Realizing that Stark needed more time, Yinsen used himself as a distraction and was brutally gunned down by Wong-Chu's soldiers. At that moment, the Invincible Iron Man was born.

As Iron Man, he has been a major part of the Marvel-verse and a long-time member of the Avengers for decades and has made numerous appearances in various animated television programs during this period as well, in both guest star and starring roles.

Quotes

 * "So you're a man who has everything... and nothing." ―Yinsen to Tony Stark; Iron Man
 * "It's good to meet you, Dr. Banner. Your work on anti-electron collisions is unparalleled. And I'm a huge fan of the way you lose control and turn into an enormous green rage monster." ―Iron Man to Bruce Banner; The Avengers
 * "This is going to be like finding a needle in the world's biggest haystack... fortunately, I brought a magnet!" ―Iron Man; Avengers: Age of Ultron