It's the most anticipated season premiere of the summer.

Mad Men returns to AMC on Sunday night with an episode titled "Out of Town."

A few days prior to this premiere, star Jon Hamm spoke to TV critic Alan Sepinwall on a number of topics. Chief among them, the inner workings of Don Draper.

Here's how Hamm analyzed his character:

My take on Don being a complicated guy is that his whole life is essentially based on a foundation of untruth. This is a guy who is outwardly supposed to be the most confident, handsome, greatest guy on the planet, and yet inwardly, he knows he's a fraud. That is the number one thing that informs our guy. He's waiting for the other shoe to drop - always. That kind of stress, or that kind of anxiety, you can't keep at bay forever.

In many ways, I think we saw that facade start to crack last season. It is very much a facade. This is why his main relationship is broken. He is not emotionally honest with himself or with his wife. And what a terrible place to be in.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.