Frederick Forsyth gets a (perjorative) mention in this but he enjoyed it so much that he wrote about it in his Daily Express column. He deliberately misnamed Midsomer Worthy as "Midsomer Jockstrap" and he described the whole series as "amiable tosh".
No scenes were shot in Durrow, Ireland. The village of Meonstoke in Hampshire, England was used for those scenes.
Old Swan House in Chipperfield served as Gerald Hadleigh's home. The house dates back to the 17th century and was originally a working farm, known at the time as 'Rose Farm'. It is a private residence.
Timothy Bateson appeared as Mr. Jocelyn in three episodes (S1.E2, S2.E1, S8.E3).
Anna Massey plays Honoria Lyddiard in this episode. She returns in episode 12.3, Secrets and Spies (2009), in the role of Brenda Packard.