[Nerwen]

Let's see... perhaps 1. is "Gollum".

Gull (credulous fellow), mixed up (in turmoil) with M for a thousand and O for oxygen.

Ring any bells?

And 6. could be "Lumahk" (i.e. Khamul backwards).

Ma (matriarch) inside mixed up (chaotic) letters of hulk (prison ship)- and then the whole name is "reflected".

I mean, those might not have been your solutions, but I think they're quite decent ones. Perhaps you could adopt them.

Though I don't have any idea what would link all these people...