Are you starting a story? Do you have an incomplete, flawed, or no character at all? It's happened to me many times and in my struggles to perfect my creations, I have learned a few things. I present you with seven easy steps with a challenge each to get you thinking.
Grab a piece of paper and a pencil. Let's start
Step 1: Past
When creating a character, you must first establish a past. Even a person with amnesia has a past, they just don't remember it. Pasts are important, they show what shaped the person and why they are the way they are today.
If your character has a scar, why? If they have amnesia, why? If they have a phobia of water, why?
Remember one thing: there is always a reason.
Challenge: Write a brief story (vignette) of your character's past to familiarize yourself with the way things were.
Step 2: Appearance
You may have a certain idea, a vague idea, or no idea at all as to how your character will look. First, think of their