The real problem is the set up for GOT wiki characters.  Almost unprecedented, TV viewers don't want to be subject to the 'spoilers' from the books.  If there's a possibility they will, they won't click on the wiki link.   So just a plain Jon Snow description doesn't say if it's from the book or TV or both.    Really, you should have two separate descriptions ("Jon SnowTV series" and "Jon Snowcharacter in a Song of Ice and Fire series"), such as exist in long running TV or movies series sometimes when they are not exactly the same as the book series.  (Jack Ryan is a good example)