Okay, “infamous” and “notorious” are opposites of “famous”. Now, the word “celebrity” is related to the word “celebrate”. What I’m looking for is a word to describe someone who is well known, like a celebrity, but isn’t exactly celebrated. Example: John Lennon was a celebrity, Charles Manson is a [need a word here meaning the opposite of celebrity]. I don’t think “notoriety” really fits.
Can anyone come up with something?