Vincent Wong, who plays fake mystic healer Pan Duc Lao, had previously appeared in the previous episode, Mother Redcap (1998), as one of the gangland bosses in the photographs shown in the news broadcast at the beginning of the episode.
The large statue in the front hall resembles the DC Comics character Black Canary.
Both Rik Mayall and Francis Matthews who both appear in this episode died within 5 days of each other respectively.
Sign for 'Bat Cave' reads: "Shercroft & District Wildlife Trust. No admittance. Premises assigned for Bat Habitat." Possibly a reference to Sherlock and his brother Mycroft Holmes.
Francis Matthews and Hannah Gordon also played a husband-and-wife in the Taggart episode Fatal Inheritance (1993).