I don't like Reagan or Regan. Yes, they're easily confused. Reagan is one of the bland, pasty ex-president surnames that are trendy right now.
And Regan was not only an unadmirable character in Shakespeare, she was also the name of the devil-possessed girl in the Exorcist, one of the scariest movies out there. The girl who vomited green slime, twisted her head halfway around, and got violated with a crucifix, among other things. In all honesty, that Regan is probably more widely known among the general public than the Shakespeare character.
"It's one thing to be open-minded and quite another to be so open-minded your brains fall out."--Dear Abby
"Let other people push you around, and you deserve whatever bad things happen after that."--Lauren Bacall