- The last TV role of Nigel Stock
- Peter Cushing was intended to play Arthur but was replaced by Patrick Troughton.
- Was made and intended to be shown in 1985, but was put on the shelf for two years. By the time it was shown two major cast members, Patrick Troughton and Nigel Stock, had died.
- Karen Gledhill auditioned for a Nurse. Jacki Webb.
