– bass, vocals (most vocals on "A Dying God Coming into Human Flesh", all vocals on "Triptych I: Totengott", and spoken parts on "Triptych II: Synagoga Satanae"), and executive producer of album Erol Unala – guitars, engineer, additional programming on "Temple of Depression" Franco Sesa – drums Session musicians Lisa Middelhauve (Xandria): guest vocals on "Drown in Ashes" Ravn (1349): backing vocals in final chorus of "Temple of Depression" Simone Vollenweider: guest backing vocals on "Temple of Depression", additional vocals on "Obscured", and lead vocals on "Incantation Against You" Sigurd Wongraven (Satyricon): brief segment of lead vocals on "Triptych II: Synagoga Satanae" Peter Tägtgren: backing vocals on "Triptych II: Synagoga Satanae" and co-producer of album Walter J.W. Schmid: engineering, mixing, mastering Phillip Schweidler: engineering, mixing Charts References External links "The Great Beast Resurrected" – article in PopMatters covering the band's comeback and an early review of the album Celtic Frost albums 2006 albums Century Media Records albums Albums produced by Peter Tägtgren