This episode features a character billed in the cast only as "Polaroid Man", whose face is unseen, who never speaks and who is not identified by name. This character represents "the headless man" featured in a Polaroid photograph produced during the 1963 divorce proceedings, in which the Duchess of Argyll was shown performing fellatio on one of her lovers, whose head was out of shot so that he could not be identified. The Duchess went to her grave without naming this man; he was popularly believed to be Duncan Sandys, a prominent Tory minister in the early 1960s and the former son-in-law (and close wartime colleague) of Sir Winston Churchill. Some sources suggested that he may have been the actor Douglas Fairbanks Jr. Another Tory politician, Lord Hailsham, denied publicly that it was him, although no-one had ever supposed that it was. In the 21st century, one of the Duchess's children claimed it was an American named Bill Lyons, an executive with Pan-American Airlines. Nothing has ever been confirmed.