Also, not everyone can not act charismatic, dangerous, funny at the same time. Those would be the people who aren't acting and are just charismatic, dangerous, and funny.
I have what I believe to be a rather unique insight into this: since I became spiritual a few years back and got really serious about it (ready to let go of everything in my life to live/ discover the Truth), I noticed that people started acting a lot shyer around me, yet more interested about me, and it took me a long time to figure out what was happening.
Actually, a woman that I worked with for a long time found the courage one day to ask me how I became so charismatic all of a sudden. It really took me by surprise because I didn't realize until then that it was true, I was like an entirely new person, ...and it felt really good!
Whereas before, it would have taken a colossal effort to act charismatic and confident, now it would take a similar colossal effort to not act charismatic and confident, as those are two qualities that I now naturally exhibit. It requires the effort of breathing - it's me!
My point is, perhaps the actor that plays Negan isn't really acting, maybe he's just being himself and that's why his presentation is enjoyed by so many people. I know he has me buying everything that he puts on screen. I do feel that he smiles just a bit too much, purposely, just to come across as a bit more psycho than he really is, but I might be reading too much into that aspect.
I don't know from what I hear, he's a really kind guy, nothing to do with the character.
He just got locked into the role so well! He even admitted himself.
I believe it.
Yeah, maybe he's just a good actor...I'm pretty sure they do exist, after all ;)
But, as far as the charisma goes, that's pretty tough to fake and requires a hell-uva lot of energy to pull off for any extended period of time.
Yeah, we'll see how the second part of the season goes.
As you said, it requires a lot of energy and must avoid burnout