Cool!

I think I'm going to at least try with that backstory and modify his name so it's not actually the name of a canon character any more.
:)

I'm amazed you remembered them to be honest. But yeah, brother and sister combinations are fun.

--Brothers and sisters would make excellent agent pairs. I mean, aren't it your sibs that drive you crazy the most?--

Exactly! I'm surprised there are so few, for that reason. That's what made me think that maybe there actually was some rule about it. I mean, you've grown up with this person, you've got all the history of who sneaked on who for stealing cookies, you know how to push all the other person's buttons... but there's also that bond.

It's basically modern day. There are some differences, but they're pretty minor. I only split it off from actually being set in our world recently, when I decided that some of the stuff going on was just a bit too weird (another major character is an anthro werewolf pop star, vampire attacks are a bit too common to just be ignored, and Jackson&Felagund (back when it was one person with a split personality gone out of control) had an epic battle with an old school aquaintance who had been posessed by demons). The internet is less of a thing, though - it stayed mostly reserved for big universities and the military, and fanfic is mostly in 'zines, but the publication of these has become increasingly easy and popular, so their 'verse has its share of mass-consumed bad fanfic. Also, fangirl Latin is a common thing (some pretentious idiot started it and it caught on among other people who wanted to look clever, and spread to most of fandom).
I already had Felagund being really uncomfortable reading anything he can't hold, while Jackson took to it like a duck to water, being generally more technologically-minded. I might do some more work on their home 'verse, though (which I need to do anyway), and look for more things like that. Thanks!

Your 'verse sounds fun, though, and certainly better developed than mine. I'm glad to hear there are others like these two around, and their origins, at least, shouldn't be a problem. :)

1) OK :)

2) Hmm... I think I can pull it off. They do have fairly different personalities and possibly the biggest effects of them being twins are extreme physical resemblance and knowing one another's body language very well.

3) *headdesk* I... confess that I had momentarily forgotten Dafydd Illian. Mea maxima culpa! But Maglor wasn't his most commonly-used name, he always went by Daffyd. Would that make any difference, do you think?
(Now I'm nervous of being accused of backstory-theft)