Jack Natz is an American bass guitarist and vocalist best known as a member of the noise rock group Cop Shoot Cop. He has also acted in independent cinema such as in the 1987 film Submit to Me Now. In 2003, he joined Lubricated Goat, led by musician and composer Stu Spasm, and recorded and toured with them. He currently lives in Brooklyn, with his attention focused on creating collages, paintings and found object sculptures.