Sir Emeth Mimetes wrote:
Extreme fractalling and essence mapping is your only hope!

Describe each character in one sentence, capturing their heart's conflict and apparent goal.
Then figure out an internal motivation for each person (different from a goal: i.e. I want to win the race
to please my mother).
Then figure out an external goal for each person (a bigger one than little steps to get to it, then figure out some of the steps).
Then make an essence map for each one (doesn't need to be big, just enough to get the juices going).
Then pick one question out of each of the seven stages of my character fractalling system and do just that one for each character.
Go on from there, you should have a good grasp of them by then. And it should only take a couple hours depending on how many characters you have. Shift into brainstorming mode!
I have some of that already, actually.

I did the Snowflake system. (I'm working on Step 5) I have the motivation and external goal, a one-sentence version of their plots, how they change over the course of the story...hmm, what else was in that??? oh yeah, what keeps them from their goals. I love fractalling systems. (I use one for the plot - Snowflake system - and was intending to use your character one eventually but was concerned about running out of time because there are some beats in my story that are missing)
I'm still figuring out this essence-mapping thing. ::makes face:: I read some of the other people's on here, and was trying to figure out how they started.
Guess it's back to those articles on essence...
Thanks!