I added Age to the CS template.  Also where it says Superhero Name, change it to Villain Name if the character is a Villain, and Superhero Appearance to Villain Appearance.  You can keep it as Superhero if your character is Neutral.  If anyone is confused about the difference between Origin Story and Background, Origin story is how they got their powers or what spurred them to become a hero or villain.  background is sort of the sociopolitical history of the character, where they're from, what is their history before becoming a superhero/villain, etc.  Not all fields may be appropriate to your character, so feel free to tweak the CS slightly to suit your needs.