When Dolores talks about hearing voices, the voices that we've heard in previous episodes that supposedly talk to her sound as though they're coming from Bernard. It feels as though there are references that try to make you feel as though they're coming from someone else... Possibly Arnold? They keep saying that he's dead, but he may not be. Perhaps he modeled a host in his image or something crazy like that. No idea. Lots of tantalizing possibilities in Episode 5, but nothing conclusive yet.