Bertram Cooper (Robert Morse)

The "Cooper" in the masthead of the Sterling Cooper Advertising Agency. Bertram is the founding partner of the agency he runs with Roger Sterling. Vying for the most lucrative accounts, the Sterling Cooper Agency runs the gamut of clients, from cigarettes to politicians.

Robert Morse has won two Tony Awards: in 1962, as Best Actor for "How to Succeed in Business Without Really Trying," and in 1990 as Best Actor (Play) for "Tru," a one-man show in which he played Truman Capote