Just returning to the Thea Gilmore reference, I've got an album of hers 'Rules for Jokers'. Very good, but haven't listened to it in ages. Hadn't noticed at all the number one track on it...
Apparition No. 12
Given that she's also written a song called 'Mainstream' (and one called Apparation #13) I guess she's the number one source for one of the C-verse's most loved characters.
She also wrote the song that named one of the lesser loved C-verse characters - Militia Sister! Oh, and Razor Valentine!