Knebworth house which is the filming location for Quitewell hall in this episode had appeared in many TV and films programmes but notably it doubled for Wayne Manor in Batman 1989 and Batman Begins.
The first episode to use the new blue background and white car and dust cloud Bentley Productions logo, as opposed to the green car with gray dust cloud and orange sun with green trees logo; used in the first 14 seasons of the show.
William Gaunt plays Ludo DeQuetteville in this episode. He previously played the role of Michael Bannerman in episode 7.5, The Maid in Splendour (2004).
William Gaunt and Elenor Bron both previously appeared in the Dr Who Story Revelation of the Daleks.
James Callis who plays two characters in this episode is best known for playing Dr Gaius Baltar in the remake of the 1970s series Battlestar Galactica between 2004 and 2009.