@mattly In the playthrough I'm currently paused on I used a "trick" during character generation: If you pick one of the pregenerated characters and then press "back", you can use a pregen character sprite with an otherwise custom character.
The reason I did this was that I *really* wanted to play a Greybeard who looks like the Dream Tortoise. I like the idea of a very old turtle-man wandering around hitting evildoers with a stick and berating them.