Two Examples of Knights in Pop Culture

My first example of Knights in Pop Culture is the cast members of AMC TV series "Walking Dead" These members risks their own life to save the ones of those around them to keep them all together. 

http://www.amctv.com/shows/the-walking-dead/video

My second example of Knights in Pop Culture is Harry Potter, I grew up reading Harry Potter. I loved the series then and I still do. I believe Harry Potter is a character that everyone will see is a Knight in Pop Culture. 

http://images4.fanpop.com/image/photos/24000000/Harry-Potter-HP7-p2-the-guys-of-harry-potter-24072942-1920-1200.jpg