How about a few things, one negative (don't do this) and the rest positive: 1) Many times a plot depends on someone doing something really stupid. Without the stupid move, the story would have ended in 10 seconds. ("Got cancer? Find a charitable organization to help you. Don't cook meth." ) The character "just having to be me" is annoying. Don't make a character do stupid stuff. I will hate them. 2) Most drama comes from a character having a tragic flaw that almost anyone can relate to. Make sure it's visible alongside the strengths. (Or, if it's a villain, even more so, go the opposite route and make sure there is something endearingly human.) 3) Gene Roddenberry, I think, said that drama comes from "Captain Kirk has to make a decision." Your plot is probably already set, but play that up a little - making sure it's a genuine dilemma, maybe that gets revisited once or even twice later on, with a Woulda Coulda Shoulda. It'll help make the character interesting. 4) This may be related to #2 above, but J. Michael Straczynski (Babylon 5) said this about character development: "There are five kinds of truth. There is the truth you tell to casual strangers and acquaintances. There is the truth you tell to your general circle of friends and family members. There is the truth you tell to only one or two people in your entire life. There is the truth you tell only to yourself. And finally, there is the truth that you do not admit even to yourself. And it's that fifth truth that provides some of the most interesting drama." Food for thought. I guess it's more teevee than books, but whatever. And in any case, I Am Not An Author.