Anyway, welcome to Linda Cardellini:
By the way, you know how I know Don Draper's a pussy? He spends almost no time with his son. Now, I'm willing to grant that the creator of the series, Matthew Weiner, probably figured out early on that the actor they hired to play the boy wasn't any good, so they didn't focus on him, and instead focused on the Drapers' daughter, who is a really interesting (and increasingly nasty) teenager. That being said, anyone who is a real father of a real son will tell you that real men don't just bail on their sons. For real men, your son is unbelievably important to your sense of your self. The fact that Don almost never mentions him... although the kid would be in prime Little League years by now... just shows what a wuss he is.