6) Lei-Kung
Just like Daredevil has Stick, Iron Fist also has a surrogate parent who taught him in the ways of beating up bad people. You can’t have a story about a martial artist without a wise mentor figure – it’s basically the law – so we expect to see Lei-Kung in Iron Fist.
In the comics, Lei-Kung – also known as the Thunderer – is an immortal martial arts expert who trains up every child in K’un-Lun with the aim of one of them taking on the Iron Fist mantle, which is passed down to the individual who most deserves the title through the generations.
Again, much like Stick, we imagine Lei Kung will be a significant supporting character in Iron Fist, although he won’t be a frequent part of the action. Given how key he is to Danny Rand’s story though, it’s highly likely that he’ll feature in the series in some capacity.