TV's Worst Significant Others: 'Mad Men's' Don, 'HIMYM's' Robin and more

(AMC)
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Don Draper, 'Mad Men'

Played by: Jon Hamm

Why we'd dump him: As much as those good looks - dear god, those looks - should make up for any poor behavior, terminally philandering Don just isn't husband material. Like a slick stallion in a perfectly-cut suit, he cannot be tamed. It remains to be seen how his new wife-to-be Megan fares with him - will she finally be the one to keep him faithful?