The character sheet will be something along these lines:

Name:

Personality:

Background: rebel or regime, how and why you got there

Pokemon Name and Alias if applicable:

Pokemon Background: What have they gone through? New born? Escaped regime lab test?

How You and Your Pokemon Met: Love at first sight?

Other: Anything you may want to share. This is optional.

If youre already dead set on your character and pokemon and would like to make a rough draft, please feel free.