Trivia / Whodunnit? (UK)

• Actor Allusion:
  • In "A Time to Dye", one of the suspects mentions that she won a trip to London to see Irene in the West End starring "him what's on the telly on Monday night". At the time, host Jon Pertwee was appearing in the West End run of Irene playing 'Madame Lucy'. (And Whodunnit? was airing on Monday nights.)
  • Interestingly averted; "Worth Dying For" had Jon Pertwee hosting and Katy Manning guest-starring as a suspect, yet not a single reference to Doctor Who was made (the panel limiting themselves to a few oblique comments about Jon being familiar with her character).
  • HMRC officer Gerald Harvey in "Nothing to Declare" was played by Frank Thornton, who was three years into playing Captain Peacock on Are You Being Served?. This led to an inevitable moment when Patrick Mower, having already handed his solution card to Jon Pertwee, asked if he could ask one final question of Harvey, and Jon asked, "Mr Harvey, are you free?" "No," came the reply.^note  Similarly, when Mollie Sugden appeared on the panel for the episode "Before Your Very Eyes", the question "Are you free?" came up again.
• Uncredited Role: Lance Percival as a racing commentator in the pilot and a bandleader in "A Piece of Cake".

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