Evan Seinfeld (born December 29, 1967) is a Jewish American musician and adult film actor, as well as a director, photographer, writer, and vocalist. He is best known for playing bass guitar and serving as vocalist for the hardcore heavy metal band Biohazard, and as the ex-husband of pornographic actress, Tera Patrick, with whom he has performed in adult films. The couple announced their split on September 30, 2009, but they will remain business partners. In addition to Biohazard, he currently plays with the Spyderz. Previously, he had performed with Damnocracy. In October, 2008, he joined the band Tattooed Millionaires, as bass player.