"What you just saw... That is your legacy, Stark. Your life's work in the hands of those murderers. Is that how you want to go out? Is this the last act of defiance of the great Tony Stark? Or are you going to do something about it?"
―Ho Yinsen to Tony Stark[src]

Doctor Ho Yinsen was a renowned scientist and surgeon, hailing from the village of Gulmira. After his family was killed during a surge in local terrorist activity, Yinsen was abducted and held captive by the Ten Rings in Afghanistan. When Tony Stark was also kidnapped, Yinsen was charged with attending to Stark's medical needs after Stark was brought in injured from an explosive.

After several months in capitivity, Yinsen helped Stark escape the cave by developing a specialized suit of armor, but willingly sacrificed himself in the process to the terrorists, telling Stark not to waste his life before he died.


Early Life

Meeting Tony Stark

"Mr. Stark, Ho Yinsen."
"Ah, I finally met a man called 'Ho'."
―Ho Yinsen and Tony Stark[src]

Yinsen was an Afghan man from the small village of Gulmira. Eventually, he became a scientist after graduating from Cambridge University and started to work in Europe.[2]

Ho Yinsen 1

Ho Yinsen introduces himself to Tony Stark

Ho Yinsen met Tony Stark on New Year's Eve in 1999 at Bern 2000 in Bern, Switzerland, after Stark delivered a lecture, while very drunk, on integrated circuits. Yinsen tried to introduce Stark and Maya Hansen to Dr. Wu, but Stark drunkenly brushed him off to focus his attention of Hansen.[3] However, Stark would not even remember this encounter when he met Yinsen again years later.[2]

In Captivity

Saving Tony Stark


Yinsen works as translator for the Ten Rings

"What the hell did you do to me?"
"What I did? What I did is to save your life. I removed all the shrapnel I could, but there's a lot left."
Tony Stark and Ho Yinsen[src]

Ten years later, Yinsen was captured by the Ten Rings, a terrorist group in Afghanistan. When the Ten Rings brought in Tony Stark, injured from an explosive used in their ambush, they charged Yinsen with keeping Stark alive. A skilled and resourceful field surgeon, Yinsen removed much of the shrapnel from Stark's body and helped keep him alive long enough to build an electromagnet piece in his chest to keep the remaining shrapnel from entering his heart.[2]

Partners in Captivity


Yinsen building the Mark I with Tony Stark

"What could it generate?"
"If my math is right, and it always is, three gigajoules per second."
"That could run your heart for 50 lifetimes."
"Yeah. Or something big for 15 minutes."
―Ho Yinsen and Tony Stark[src]

Under captivity, Tony Stark and Yinsen were ordered by the Ten Rings to build a Jericho Missile similar to the one Stark demonstrated to the United States Armed Forces, or they would be killed. However, Stark refused and was tortured. Yinsen managed to motivate him and both men acknowledged that they would be murdered either way and instead focused on an escape plan. Stark revealed to Yinsen that he would use the parts that the Ten Rings gave them and build a weaponized suit of armor which he would use to kill the terrorists and return Yinsen to his family.[2]

Escape and Death

Stark and Yinsen

Yinsen fits Stark into the Mark I Armor

"This was always the plan, Stark."
"Come on, you're going to go see your family. Get up."
"My family is dead. I'm going to see them now, Stark. It's okay, I want this. I want this."
"Thank you for saving me."
"Don't waste it. Don't waste your life."
―Ho Yinsen and Tony Stark[src]

Yinsen helped Tony Stark keep the Iron Man Mark I armor he was making a secret from Raza and assisted in its creation. When Tony asked about Yinsen's family, Yinsen merely noted that he would see them when he left the cave. Yinsen also pointed out that Stark's legacy was his weapons being used by terrorists and suggests that he should rectify this.

Ho Yinsen

Yinsen gives Stark advice before dying

During the escape the terrorists were alerted to their plan, seeing there was not way they could power up the suit while defending themselves simultaneously, Yinsen sacrificed himself by taking a taking a gun and attacking the terrorists, thereby giving Stark time to power up the suit. He was shot and mortally wounded when he ran around a corner only to be shot by dozens of terrorists. When Stark found Yinsen, mortally wounded, he reassured Stark that his demise had always been the plan as his family was dead and that he wished to be reunited with them.

With his dying breath, Yinsen asked Stark not to waste the rest of his life.[2]


"Why should I do anything? They're going to kill me, you. Either way I'll probably be dead in a week."
"Well then, this is a very important week for you, isn't it?"
Tony Stark and Ho Yinsen[src]

To be added


"That is an electromagnet. Hooked up to a car battery. And it's keeping the shrapnel from entering your heart."
―Ho Yinsen to Tony Stark[src]
  • Master Engineer: Yinsen managed to help Tony Stark create the first Iron Man armor.
"Why do you think you're still alive, huh?"
―Ho Yinsen to Tony Stark[src]
  • Expert Physician: Yinsen was considered a renown surgeon and was able to keep Tony Stark alive when he had shrapnel digging into his heart.
"How many languages do you speak?"
"A lot."
Tony Stark and Ho Yinsen[src]
  • Multilingual: Doctor Yinsen was capable of speaking in his native Dari, as well as English. He also proclaimed to know a number of other languages, and knew a little Hungarian as well.






  • In the comics, Ho Yinsen was a physicist and engineer from Timbetpal, greatly admired by a young Tony Stark.


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