No-Name is a son of Cain. It is right in his fucking name!!!
“Mc” or “Mac” means “son of” among the Irish and the Scots. In Ireland into the Middle Ages naming was patronymic, with the next generation having a different surname depending on what the father’s first name was. The practice lasted longer in Scotland.
http://www.thejourneyhomegenealogy.com/the-o-and-the-mc-in-irish-surnames/#:~:text=%E2%80%9CMc%E2%80%9D%20or%20%E2%80%9CMac%E2%80%9D%20means%20%E2%80%9Cson%20of%E2%80%9D%20among%20the,name%20was.%20The%20practice%20lasted%20longer%20in%20Scotland.