I have a human earthling stuck in my brain. He's an older Black gentleman who plays trombone for jazz funerals in New Orleans, and is a practitioner of voo doo. A spell went badly awry during Hurricane Katrina and my jazz musician got swept away up into the Planes. Mechanically, he's a divine magic user of some species and may know a few healing spells. I have some really beautiful artwork of a jazz funeral that I'm using as a baseline for creating the character.
The other character idea I'm toying with is darker and more overtly evil with a punk/rogue/necromancer mood. My thoughts are less clear for this character, however, than they are for the jazz musician.
[MENTION=6755061]Kiraya_TiDrekan[/MENTION], please do not abandon Anna because I expressed interest in a Real World PC. Unsung said there could be more than one character from Earth.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.