Bert Cooper likes to cultivate the image of an old eccentric in the offices of Sterling Cooper (and later, at Sterling Cooper Draper Price), but beneath the affection for Japanese art and Ayn Rand quotes lies a sharp, ambitious mind. He’s perfectly happy to keep and use secrets to manipulate other members of the firm, whether it’s using Don’s real identity against him or not-so-subtly reminding Robert Sterling just who exactly it was who got him his job in the first place.

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