The template for NPC's is the same used for original player characters.
When making an NPC you need only be as detailed as you feel is necessary in relation to the NPC's importance. If your NPC is going to be fighting other player characters you should likely fill in their magic and weaponry information, but you needn't bother with a history if they're soon to be killed off or set aside. Let's review, shall we?
.1) The more important the NPC is, the more of this template should be filled out.
.2) If you do not treat your NPC as a character worth defining it will be rejected for any important uses.
...- such as pivotal plot points, arcs, etc.
So if you have a grandiose destiny in mind, put some effort into the person! Showcase your creativity and make something happen.