* ActorAllusion: Sigourney Weaver's tourist character gets on Mrs. Tishall's nerves. In RealLife, Selina Cadell (Mrs. Tishall) and Weaver are best friends.
* TheDanza: Martin Clunes as Dr Martin Ellingham. Further variant in that the character's surname is an anagram of series creator Dominic Minghella.
* McLeaned: Aunt Joan was killed off after Stephanie Cole chose not to return for Series 5. The character was a fixture in the setting and Martin's life, so killing her off was probably the most plausible explanation for her sudden disappearance.
* PlayingAgainstType: Ian [=McNeice=] usually plays characters who are, if not posh, at least of a high status in their sphere. Here, he plays the decidedly working-class Bert Large.