Charles Byron Griffith (September 23, 1930 – September 28, 2007) was a Chicago-born screenwriter, actor and film director, son of Donna Dameral, radio star of Myrt and Marge. along with Charles' grandmother, Myrtle Vail, and was best known for writing Roger Corman productions such as A Bucket of Blood (1959), The Little Shop of Horrors (1960), and Death Race 2000 (1975).