Aw yay! Thank you! Despite his obscurity, Epimetheus ended up being the perfect match for the sort of character I wanted to write (and all the other more popular coolkids were already taken).
Ohh dear, knowing Morgan via her mother would just make Epim feel so old but THAT IS COMPLETELY OKAY, Gods know he needs his ego knocked down a few dozen (or hundred) notches. He lived in Moscow throughout his childhood up until shortly before the Wall came down, so I don't know where/if that coincides with her mother's history at all!
I was also considering making Epim an accountant specifically for a law firm (or something of that sort, some kind of profession that he'd find exceedingly unbearable and boring), and hey! If Heimdall is a lawyer, they could totally be coworkers.