I'm a great fan of the Artemis Fowl series and I have read all the books, but one thing has always been puzzling me. In the first book, it mentions the Butlers have been serving the Fowls for centuries. However, Mr. and Mrs. Fowl never seem to have a Butler around protecting them. Do they have Butlers? If so, where are they and why do they never appear?
Mr Fowl (Artemis Fowl I) did have his own Butler bodyguard: namely the Major, Domovoi Butler's uncle. He was killed before the start of the series at the same time his principal was kidnapped by the Russian Mafia.
It is unknown whether Mrs Fowl (Angeline) ever had one, but certainly none appears in the series. A few years before the start of the series (when most of AF and the Time Paradox is set), Domovoi Butler is the only servant the Fowl family have remaining, so perhaps she did have a bodyguard who left due to not getting paid. However, it seems likely that Butler bodyguards were only for those who were Fowl by blood, rather than just marrying into the family.