Don gets all the glory, but Roger Sterling (John Slattery) is by far the most entertaining man on Mad Men . Sure, he's been through some rough times, but it's nothing compared to Don's constant existential crises. Even his big problems (like having a love child with his former secretary) kind of get smoothed over with a wink and a compliment; he's absolutely impossible not to love. He's most recently been seen forcing Peggy to have a good time in the old Sterling Cooper & Partners offices, reminding us how awesome he is. Here's everything I — and you should — love about Roger.