Atton Y'nam was a former Imperial Moff. When the former Governor of the Clantosh system was killed in an accident, Atton was chosen to be the next Governor. He was not particularly competent, but as the Lugein sector was quite peaceful, he eventually managed to get himself promoted to sector Moff. Although he had some combat experience, Moff Y'nam forgot most of his military training and experience when the sector was left dull for years. When Erk Grekins finally became interested in the Clantosh system, Y'man quickly and quietly surrendered to the warlord Admiral.