Ginna Sulcer-Marston (born Ginna Sulcer February 19, 1958 in Chicago, Illinois) is an American advertising executive notable for anti-drug public service advertising campaigns at the Partnership for a Drug Free America, a nonprofit consortium of advertising professionals which ran targeted media campaigns to unsell illegal drugs.
She was a founder of the organization in 1986 which produced the well-known commercial This is your brain on drugs and other "hard-hitting, unsentimental ads" which depicted the "unglamorous reality of drug abuse".
As research director, she studied the consumer motivations of drug users by means of marketing research methods including focus groups, quantitative surveys, and advertising research, and she led media campaigns directed at specific audiences such as inner-city youth, pre-teens, and parents.
In addition, she often served as the organization's spokesperson, by giving speeches at numerous press conferences, by speaking at universities such as Colgate University, appearing on television, in print media, and on radio.
She is regarded as an authority on anti-drug advertising efforts.