Episode 87 - Up with people: Heroes and Villians

What are the Do's and Do Not Do's when it comes to creating protagonists and antagonists??? For Quackcast 87 we asked for people's opinions on making heroes and villains, we asked who are some of your fave heroes and villains? What makes your own characters such good heroes or villains? What are YOUR Do's and Donts, how do YOU prefer to construct your heroes and villains? Is the hero just a hero because they're the protagonist? Or are they a classic hero?
What's the difference between heroes an protagonists? Villains and antagonists? etc. Some clever and intelligent people weighed in on this and shared their opinions on it with us.