Sociopaths are more ...

Sociopaths are more complicated psychopaths; the difference between a sociopath and a psychopath is a sociopath is incredibly charming. There are a lot of sociopaths that are CEOs. They don't necessarily kill people but they're able to walk into a big social function and make everybody think they're the kindest, coolest, smartest, most interesting person in the room.
 Patrick Heusinger

Quotes from the same author

I had just come off of doing a play in Los Angeles which actually got me the role. It was called Bent and it was at the Mark Taper Forum. I was playing a homosexual in 1930 to 1934 Berlin who is eventually put into a concentration camp for the second half of the play. I had lost about 38 pounds for that.
 Patrick Heusinger
For some roles, like when I was doing Bent, that was harder and I didn't find that helpful because I was so calorie deprived, my brain wasn't getting food. I would end up not being as focused or as clearheaded as I would have liked to be during the run of the performances. I would lose those quality impulses that you lean on when you're acting because of malnutrition. basically. But I looked skinny.
 Patrick Heusinger
You get a role like this in a big action movie [like Jack Reacher] and you can go one of two ways: you can paint in broad strokes, which happens a lot in action films, or you can get very detailed.
 Patrick Heusinger