But there is another side of the gruff "Mad Men" character: the one who pines after Peggy (Elisabeth Moss) and even went in for the kiss.
Ferguson opened up to GQ about Sunday's episode, titled "The Crash," in which he and Peggy engaged in a halfway-decent kiss.
"This was the first time the audience was getting a chance to kind of see this softer side. For so long now, people have started to wonder, is there even any other part of Stan than what we see?" he said. "So that was fun and liberating, as the character, to be able to go there a little bit. And just to be able to do that with Lizzie [Moss], that was a very special gift that they gave me."
Ferguson added, "There was a moment there where as an audience, you wonder, is there maybe a little bit of a two-way street here? But then it just gets yanked right back in the other direction."
As much as he enjoyed the scene with Moss, it looks like Peggy-Stan shippers might not be seeing what they want just yet.
Despite the beloved potential couple's moment, the real star of "The Crash" was Ken Cosgrove (Aaron Staton), who performed an impressive tap number for Don Draper (Jon Hamm).
"There are already GIFs all over the Internet. I want it to be the screensaver on my computer," Ferguson told GQ.
Staton told The New York Times that he didn't even know if he'd be able to do the number. "The truth of it is, it’s not something I’ve done in a while. It’s been a few years. First I got a text message, 'Do you tap dance?' And so I had to go: 'Do I? Let me check.' I’m still holding the phone -- 'What do I still know, if anything?'"
"Mad Men" airs on Sundays at 10 p.m. ET on AMC.