What Happened To Everyone Who Became Iron Fist?
1. Danny Rand
Usually your scribe likes to start off such lists with the one everyone has actually heard of, but with the unique legacy of the Iron Fist mantle, it felt necessary to build up to him so as to imbue an appreciation for the character's legacy.
Anywho, Danny Rand, the current Iron Fist, is the heir of the Rand Corporation. Danny was taken to Tibet in search of K'un-Lun by his father Wendell and mother Heather. However, they were betrayed by business partner Harold Meachum, who straight up Mufasa'd Wendell after he managed to get Danny and Heather to safety.
Presumed dead, Danny returns after 10 years training in K'un Lun, where he's set upon the path to become the next Iron Fist.
After gaining back control of his company from the man who sabotaged his father's plane, Danny proceeded to use both his wealth and his martial arts abilities, to help the world in a way that the previous Iron Fists could barely dream of. Along the way, he befriended superhero Luke Cage and the two formed the Heroes For Hire, and the rest - as they say - is history.