There have been a number of threads on how deep one must go when making a character. The general answer, basically, was that you can never go too deep. However, on other threads I've also read that you can hold on to an idea for too long. What's the happy balance? I just finished the first chapter of my first book and looking back I'm worried my main character isn't deep enough. True, the novel is plot based, but the characters are absolutely vital for me. I felt like I knew alot about her but I've started to worry I don't know enough. I'm also nervous because I'm soon to start the second chapter, where the MC will meet a cheeky band of mercenaries whose characters, I feel, will be the extra spice to the plot in my book. How do you know your character is complete? How do you know that you have enough to begin writing and letting the character, from that point on, develop themself through your writing?