Writers Write is your one-stop resource for writers. If you’re looking for a starting point for creating a character, you will enjoy this worksheet.
Lee White’s character interview will kickstart your journey into your character’s past.
If you are looking for more in-depth questionnaires, please have a look at these: 9 Useful Character Questionnaires For Writers
We found the questionnaire here: SCBWI – Society of Children’s Book Writers and Illustrators