Vierna is noamuth, which comes from Noamuth Lil, which is drowic for "the Wanderer" and is the alias she used while working with Bregan D'aerthe after her family was killed

This doesn't appear in the novels but is mentioned in an official 2e game supplement so I'm counting it as canon

Tally is halflingflapper because that's what my original pitch was for her character

Metawing is psycholumin, partly because like a lot of psionic trolls she sometimes puts on a light show when she uses her powers, but more because the journal that I used for a different version of her for years had her actual trolltag, psycheslantern

Which references the psionic lights and also ties into her thematic association of seeking forbidden knowledge, via the myth of Eros and Psyche

Much is morel-support because he's a mushroom druid and he's here for moral support