You may be surprised to learn that many of the most recognizable fictional characters in pop culture were inspired by real people. Sorry, we know that throws a wrench in your dream sketches. But good news -- now you can see what those real-life inspirations actually look like! 1. J.K. Rowling based Professor Snape on her own Chemistry teacher, John Nettleship. Image: White Hound / WikiCommons 2.