This article may be aimed primarily at screenwriters, but it’s great advice for fiction writers as well. “As human beings we are created with unique and differentiating perspectives; characters should be created with that same concept in mind.” Etc. (NB for the copyeditors among you: If you’re anything like me, you’ll wish you got your hands on this before it was posted, but read it anyway. Please.)

As human beings we are created with unique and differentiating perspectives, characters should be created with that same concept in mind.

Source: Let’s Not Put Story Before Character – ART + marketing