It's me Liz (Jennifer, Sarah and Michael) and I'm adding Rodney McKay and Ronon Dex to my stable of characters. Anyway, both characters are from Stargate Atlantis. Rodney is an uber brilliant scientist (and an egomaniac to boot) and Ronon is a warrior/weapons expert.
Ronon would eventually be interested in helping train people to fight and teaching proper weapons use. As for Rodney, it was suggested he eventually meet up with the Doctor.
Right now, the plan is to have Rodney meet up with Carson (another SGA character *pokes Lara*), freak out, get hurt and then the two of them will end up at the hospital and probably join Jennifer and Martha's thread.
If you want to plot with either Rodney or Ronon, my contact information is posted. :)