| The only truly honest PM the UK ever had
Doctor James 'Jim' George Hacker, Baron Hacker of Islington KG PC, BSc (Lond.) Hon DCL (Oxon.) (June 18, 1927–November 4, 1995)
Jim Hacker was a Minister of the Crown and Prime Minister of the United Kingdom sometime during the 1980's [Although how this fits in with Mrs Thatcher's reign is not easily explained.]
Neither Conservative or Labour, there is a creeping suspicion that he may have been a Liberal Democrat but for some reason we're not sure.
He looked suspiciously like Paul Eddington CBE and died on the same day November 4, 1995.