Terry O'Sullivan (July 7, 1915 — September 14, 2006 in Kansas City, Missouri) was an American actor, best known for his role on the soap operaSearch for Tomorrow as "Arthur Tate" (1952–1955, 1956–1966).
In the "Arthur Tate" role, he received the TV-Radio Mirror award for best daytime drama actor three years in a row (1953–1955). When his character was written out of Search for Tomorrow, he played the role of Richard Hunter, father of Susan Hunter (Denise Alexander), on Days of our Lives (1966–1968).
He also played the role of Judge Sam Stevens on The Secret Storm (1968–1969) before officially retiring from television roles in 1970 and relocating toMinnetonka, Minnesota.
O'Sullivan died of pancreatic cancer in St. Paul, Minnesota.