Acting Fitty Wienhold Acting Dirkschneider: Live - Back to the Roots - Accepted! Himself - Bass 2017 U.D.O. - Steelhammer - Live from Moscow Himself - Bass 2014 U.D.O.: Live in Sofia Himself - Bass 2012 U.D.O.: Mastercutor Alive Himself - Bass 2008 U.D.O.: Nailed to metal Himself - Bass 2005 U.D.O.: Live from Russia Himself - Bass 2001 Agent-readable