So I need to ask. 

I am considering make another scientist, but this guy is younger, a new grad, if you will, yet he has been working with either/and/or Hal and Eric for a few years at most. Does he know that the Dark Fairy is working with Eric? or is that a big secret? 

I'm thinking of having him specialize in supernatural detection technology. He'd be involved in some field work, maybe borrowing a few of Hal's shapeshifters to aim his special cameras at. He could be part of a team that hunts and captures supernaturals maybe?