Charles Byron Griffith was an American screenwriter, actor, and film director. He was the 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, The Little Shop of Horrors, and Death Race 2000. He was credited with 29 movies, but is known to have written many more.