So you may have some kind of hero in your head. Well, every hero needs a Villain. And every Villain needs to be done well. Here are some tips to help you write you Villain.
Tip #1: Make the Villain Sympathetic. Find was to show us that this Villain is not evil all the time, or perhaps weren't evil all the time. Make us feel sorry for the villain.
Tip #2: Sometimes, being totally evil is totally ok. Giving us a Villain who just likes to be evil can actually be pretty cool. But you have to give him a good reason to act the way he does. Otherwise the villain might come off as bland and uninteresting.
Tip #3: Villains can have friends