27. Mona Sterling
Showcase Episode: "The Grown-Ups"
Roger's first wife is a lioness, as he says, and it's no surprise she rebounds from the marriage better than he does. Talia Balsam is married to John Slattery in real life, which might help explain their surefire chemistry. Balsam adds a lot to the Six Degrees of Mad Men game, because she was on an early episode of Dallas (she's the pregnant teen who tries to sell her baby to Sue Ellen) — making her the crucial historical link between Dallas and Mad Men.