Developing Character

I’ve been planning out my next project, The Julian Calendar. I have a pretty good idea of how the story looks, over all. I know where the characters have to go and what they need to do. I even thought that I knew how the main character would behave. He is Julius Caesar, after all. Isn’t he bold and heroic? A type-A personality through and through? I have never thought of Caesar any other way. Until today.