Ray talking to himself?
Michael J. Anderson was playing Ray. He IS Ray. This is not negotiable. David told the guy who played Ray, that he wants to bring in "little Mike" to play his character. He represents him. In the pilot, Ray has to go deeper and deeper into a building, down corridors, through doors — metaphorically deeper into his own subconscious to find a justification for what he has to do. — TristanLove