- "You are a living weapon. Drive all of the thoughts out of your mind, except this."
- ―Lei Kung to Danny Rand
Lei Kung was the trainer of Danny Rand.
To be added
- Danny Rand/Iron Fist - Trainee
- In the comics, Lei Kung the Thunderer was an immortal martial master and trainer of Danny Rand in K'Un-Lun, and the father of Steel Serpent.