This is a bit out of left field, but I enjoy how King is not afraid to include handicapped characters into his stories. The Stand (x2), Mr. Mercedes and TDT immediately come to mind. I think it's refreshing that he is able to write them in as major characters as well. I remember the first time I read, The Stand and getting to the chapter regarding, Nick and thinking "WTF"? However it worked out just fine. Same with TDT. He is just so damn good at developing characters, its uncanny!!