Joseph Alexander Walker (February 24, 1935 – January 25, 2003) was an American playwright and screenwriter, theater director, actor and professor. He is best known for writing The River Niger, a three-act play that was originally produced Off-Broadway in 1972 by the Negro Ensemble Company, before being transferred to Broadway in 1973 and then adapted into a 1976 film of the same name starring James Earl Jones and Cicely Tyson. In 1974, Walker became the first African-American writer to win a Tony Award, receiving the Tony Award for Best Play for The River Niger. The playwright previously won an Obie Award during that play's 1972 to 1973 Off-Broadway run. Source: Wikipedia (en)