The blood den proprietor is an unnamed character featured in the North American version of the TV series Being Human. Played by actor Ivan Smith, he appeared in the pilot episode of the series, "There Goes the Neighborhood (Part 1)".
This individuals, whose identity is unknown, was the proprietor of a vampire blood den located in Boston, Massachusetts. The vampire elder of the city, James Bishop had been emotionally manipulating one of his former generals, Aidan Waite, into returning to his flock. Catching Aidan at a vulnerable moment, he brought him to a blood den. The proprietor greeted him with a smile and said, "Welcome back, Mister Aidan", before taking his coat.