Robert Alan Morse (born May 18, 1931) is an American actor and singer, best known as the star of both the 1961 original Broadway production and 1967 film adaptation of How to Succeed in Business Without Really Trying, and as Bertram Cooper, from 2007 to 2015, in the critically acclaimed AMC dramatic series Mad Men.Throughout his long and varied career he received two Tony Awards, a Primetime Emmy Award, and worked on a Grammy Award-winning album.