Call him Doctor Death.
He isn't quite the "hero type" and can uncover a person's deepest, darkest secret or see what is, literally, eating away at them. Doctor Death serves as judge, jury, and, at times, executioner taking down the occasional psychopath, vampires, zombies... you know, the usual threats.
The Chronicles of Dr. Death is a noir treat. 156 pages of thrills by Schutz, Kaviraj and Wright!