Dave "The Beast" Spitz (born February 22, 1958) is a musician best known for having played bass guitar for the heavy metal group Black Sabbath from 1985 to 1987, appearing on the albums Seventh Star and being credited for (but not playing on) The Eternal Idol. Dave also helped discover Ray Gillen, the vocalist who joined Black Sabbath mid-tour in 1986, following the sudden exit of Glenn Hughes.Spitz was born in New York.