Well, the key to creating a believable character is to think a lot about them, jot down a history of them, think of what their personality is like and give them reactions to different situations. You also have to spend a lot of time on your characters like a year, that's how long I've spent. History Go to the beginning, the chicken and the egg. Has there been any traumatic or major events that has happened to make them how they are? What are their family like? (How you are raised is the main contribution to a person's development) Have they succumbed to any kind of peer pressure in their vital years? Where were they raised? Were they raised in a poor environment or a rich upbringing? (A rich person is always a lot crueler and materialistic than a poorer person) Personality Think of yourself as a basis. What do you like? What do you hate? What are your moods like? (Are you always angry or happy?) Do you have any quirks? (Unexpected skills or interests make humans, human) Those are the two vital catagories that make us, us. We are not human if we are all the same.