4. Ramsay Snow
If I had been told that there would be an individual with a level of psychopathy that surpassed Joffrey's, I would have immediately questioned it. However, now I don't what makes someone like Ramsay more menacing than Joffrey is the fact that part of that enjoyment comes from inflicting the pain himself. While Joffrey might cower under a table in a battle scenario, I feel as though someone like Ramsay would welcome it with open arms. Iwan Rheon's days as Misfits' Simon Bellamy really do seem to be behind him. The Bastard of Bolton takes great pride in his father's sigil and I really do believe we haven't seen the last of his excruciating 'methods'. Now that Winterfell is in his hands and Theon's been utterly broken, I'm curious to see if Stark loyalists or a Greyjoy fleet will make an attempt to take it from him.