Some of the filming for this new series took place at The Charterhouse, Charterhouse Square, London.
Oona Castilla Chaplin (Oona Chaplin) is the daughter of Geraldine Chaplin, the granddaughter of film icon Charles Chaplin, and the great-granddaughter of American playwright Eugene O'Neill.
The scene at the water mill was shot at Mapledurham on the Thames, near Reading.
James Delaney's house was featured in Whitechapel S4 e2 as the home of two sisters and referred to as the "witchey house".