Michael
Michael didn't have a lot to lose. Not that he ever had, really. Not since he'd contracted this... condition. And he had, to a point, been very vocal and active in trying to get something done about this predicament.
So now that someone else was coming to suggest some test, some experiments, whatever they were, Michael was willing to volunteer.
He knocked on the door, eyeing the slightly shabby exterior and rather Victorian-esque set up. The fact that it reminded him of the less than savoury doctors and surgeons that he'd read in novels from that era should have made him skip away, but well, his best friend was possessed by something, he couldn't get a good job, and he... felt lonely. So. Nothing left to lose.