Interesting stories have interesting characters. Interesting characters are born not typed. To bring your characters to life you need a deep insight into who they are and what makes them tick. Below is a list of questions that can help guide you in crafting your character.
What is the role or purpose of the character in the story? (antagonist, protagonist)
What is their name?
Do they have a nickname?
What is their age?
What is their gender?
How tall are they?
How much do they weigh?
What is their build?
Any distinguishing features?
What is their conscious goal?
What is their personal motivation?
What is their back-story?
What is their dominant trait?
What are their other traits, good and bad?
What are their imperfections?
What are their quirks?
What skills do they have?
What is their point of view?
What is their attitude?
What is their emotional state?
What are their fears?
What are their beliefs?
What are their goals?
What are their desires?
What are their needs?
What are their wants?
What motivates them?
What is their speech pattern (dialogue style)?
What is their psychology make-up?
What is their mother like?
What is their father like?
What is their marital status?
If they have a significant other, how long and what is the relationship like?
Do they have any close friends?
If they have close friends, what are their relationships like?
Do they have children?
If they have children, how many, how old, and what are the relationships like?
Where do they live?
What are their living conditions?
What is their occupation?
How do they feel about their occupation?
What is their status in life?
How do they feel about their status in life?
Where did they grow up?
What were their living conditions like when they were growing up?
What is their education level?
What is their social position?
What is at stake for them in the story?
Where did they start out emotionally, physically and psychologically in the beginning of the story?
Where are they emotionally, physically and psychologically in the middle of the story?
Where are they emotionally, physically and psychologically at the end of the story?