The puppets from this show starred in the music video for "Land of Confusion" by Genesis. The video centered around Ronald Reagan (as voiced by Chris Barrie), but also featured most of the Spitting Images characters in one way or another.
One of the generic puppets used as an extra in many scenes was a Lord Lucan look-alike. He would often appear as a waiter, barman or just in the background of many sketches in foreign settings. The real Lord Lucan Vanished without trace in 1974 on suspicion of murdering the family nanny and there had been numerous unsubstantiated sightings of him published in the press for years afterwards.
The 8th series still has Maggie Thatcher still in charge. I remember John Major as an android for a series and then he was just grey. I remember a series of sketches with him and Norma being boring and eating peas.