I both love and hate Sebastian Morgenstern. He is my favorite villain because of how messed up he is. Now, as messed up as he is it isn’t his fault. If you think about it, he would have been a normal person if Valentine didn’t experiment on him.
Will killed the role as Sebastian in the show. He’s so good at making him seem just as psychotic in the show as he is on the books. Not only that but he plays both Sebastian Verlec and Jonathan Morgenstern as two different people like they are. His acting is amazing and people were worried about him playing such a psychotic role because of how sweet Will is but honestly I couldn’t see anyone else as Sebastian.