Dr. Ranier Blood is Kin, and one of the only psychologists to successfully straddle the worlds of the Ever-Dying and the Mythos. His primary focus is aiding those members of magical society who cannot fit in on their own, but have inadvertently drawn attention to themselves in the human media.
As he often tells his clients, he’s not there to change them, but merely to help them learn camouflage so they are not caught again.
Whether or not he has something more nefarious going on is up for debate. Most among the Mythos don’t trust him, though that could be because of his insistent association with ordinary Ever-Dying humans. Time, as they say, will tell.