My secondary characters tend to be different aspects of my own personality. We all have parts of ourselves that we keep under control, and secondary characters allow me to give those parts of myself a voice. Sometimes it isn't pretty, but I think that is the only way to keep them real. Sometimes my characters are an image that I have in my mind of what my life might have turned out like if something different had happened. What would I be like if my writing had completely flopped and never gone anywhere? What would I be like if I hadn't met my husband and I was still single and waiting? Sometimes those characters are people in my life--or aspects of people in my life. Then I have to think, if I were in their shoes, what would I do? How would I feel?