According to Stephen Fry, fellow comic actor Robbie Coltrane was watching the recording from among the studio audience, and can be clearly identified on the laugh-track.
In the German version, Prince Ludwig the Indestructible is from Switzerland.
In the Spanish dubbed version, Ludwig's guards are also German.
Prince Ludwig is German, yet his torturer is Spanish. This confusing combination may be explained by historical context. In the late 16th century, Spain and the Holy Roman Empire (which contained most of Germany) were ruled by cousins from the House of Hapsburg, and cooperated in numerous political and military conspiracies.
Prince Ludvig offering Edmund apologies (pronouncing it as "Apple Logies") and Edmund not accepting it, was a jab at the Australian television awards The Logies as how the first season was made by an Australian television network so it was eligible for any Logie nominations, but did not receive any.