The Friday Club has echoes of The Monday Club.
Formed as a right wing pressure group within the Conservative Party in 1961, the Conservatives severed connections with the Monday Club in 2001 due to its opinions on race and imperialism. Over its history, some Monday Club members have been suspected of supporting the National Front and of being nazis.
There was a club in the 1930s called 'The Right Club' led by a Tory peer Archibald Ramsay, which the fascist club featured here is clearly a fictional version.
Guy Spencer mentions the Duke of Westminster as a supporter of his pro-Nazi cause. Hugh Grosvenor, Second Duke of Westminster (1879 - 1953) was a member of the infamous Right Club. He was also an ardent supporter of Hitler.
"Patrick Godfrey" who plays "Ernest Bannerman" and "Amanda Walker" who plays "Lady Bannerman" are real life husband and wife. Married in 1960.
The villain has a significant name. Guy hearkens to the traitor, Guy Fawkes, who tried to blow up Parliament in 1605. The name Spencer would imply that he is related to Prime Minister Winston Spencer Churchill.