I've played people that are on the line of evil and good, but that's life. We are always playing with the good and the bad. I see them as people. I don't see them as caricatures. I try to not make them caricatures. Maybe I fail, but I try to see what' behind them. Would I play the hero? A superhero? I don't think so. But, I play good guys. There are some there, but you have to look.
Also, as I've gotten older and more mature, I've become much more comfortable in my own skin. After 25 years of doing stand-up, that's reflected onstage.