First of all, I use a Character Sketch form at the beginning before I even start writing the story. I need to know my main characters so I fill out a detailed form on the hero and heroine. For sub-characters and one-scene characters, I fill out a much shorter form or list the pertinent info on them in a paragraph in my notes. This helps me not to forget specific details as I plow through the story and six months later go back to the beginning to edit. It's also helpful if you have to stop working on one manuscript to work on another to meet a deadline.
The checklist below is meant as a guideline through your editing process to make sure your characters are consistent with their behavior, growth development, speech patterns, and to make sure you don't alter their physical traits where and when you aren't supposed to.
Name of Character _______________________