"Whose side are you on?" Dean demanded, eyes narrowed and hands steady on the shotgun - although it didn't appear to have phased the man before him, even when Dean could see the far wall through the bleeding holes in his body.

A tilt of the head and then Dean swallowed as blood red eyes met his own and a fang-filled grin spread across a face that was entirely too narrow for it. "Side?" the creature chuckled. "I am in the service of the Hellsing Organization. Who do you call master, little hunting dog?"