THE BLAMER-COMPLAINER - someone who blames you and others for his mistakes.
Sometimes called Whiners because of their tone of voice when blaming and complaining, Blamer-Complainers are probably the most common type of difficult people. Their tone of voice alone makes them difficult to work with. Equally irritating is how they pass the buck, find fault in everyone and everything, and enroll other people in their poor decisions. Blamer-Complainers are a drain on morale and esprit de corps.