I think that I have a longer list, but I’m going to start with these two:
He was really crazy.
The journalist of “Come and hug me”, she was really out of her mind. I was relieved when she died, which is bad. But she was so mean that I was scared of all the damage she can cause.
I have that drama on my watchlist… Was the journalist the villain of the series? 
One of them, she was like a kind of hidden villain which is much worst for me.
The villain in this one gives me the CREEPS! He’s more of a brainless possessed person but his look, his actions AHHHHHH I really want to watch it all but he’s terribly creepy