Alright, gone a bit of distance with Khar and Phil yesterday, so we've got four solid concepts fully fleshed out.
Here are the characters we've got so far:
Ex-detective / Private Investigator (KvP)
Unscrupulous lit professor / bestselling author (Khar)
Scarred outdoorsman (Boro_Bandito)
Eastern European History Prof (JimmyJazz)
Pretty sure Jace was thinking about a hit man character, but we haven't gone in-depth yet.
So at this point, we've got one physical-oriented character (Boro_Bandito), an academic (JimmyJazz) and two smooth-talkers (Khar and I). Here are things the hunter cell could probably use - More combat bruisers / shootists, journalists, scientists, occultists, and doctors. This is a "tier one" chronicle, and if we get past this we could conceivably reach "tier two" which will allow for more out-there and powerful concepts (psychic FBI agents, "white witch" occultist magic-users, etc.) Since we don't have many people left to flesh out characters, use of an "ally / retainer" merit will probably do in terms of info-mining / science / doctor characters. A doctor is probably most vital.