A character sheet is an overview of all your character information. This help you remember all the little details. It also makes it easy to compare characters.
Basic information
Name: Protagonist
Nickname:
Gender:
Species:
Birthday: Age at start of story:
Place of birth:
Character Development: Character Change
Unique skills/powers:
Recognized by
Distinguishing features: Character Description
Signature prop:
Mannerisms: Characterization
Particular preferences:
Voice: Dialogue
Habits:
Relationships
Spouse:
Children:
Mother:
Father:
Siblings:
Best friends: Supporting Characters
Enemies:
Medical record
Diseases:
Allergies:
Handicaps:
Injuries:

External representations
What does his room/home looks like? Setting
Backstory
Key memories: Memories in narrative
Childhood:
Worst fear:
Dream:
Religion: