Sons of Perdition is the misshapen spawn of Zebulon Whatley and whoever else is gracious enough to submit him- or herself to his service of the LORD. Here's a list of one-time sinners who have beheld the light and been burned by it:
Lonesome Wyatt (vocals on "Psalm of Nod" - PFTSD, sermon on "Blood in the Valley" - TKIOF)
Seth Fleming (string composition on "Burial at Sea" - TKIOF)
Dad Horse Ottn (banjo and backing vocals on "Psalm of Nod" - PFTSD)
Dan 138 (music and backing vocals on "Psalm 138" - PFTSD)
Michael Larkin (destruction/reassembly of "I VENT A BLOODY HELL" - TKIOF)
Tamara Cauble (violin on "Burial at Sea" - TKIOF)
Michael McConnell (concertina and backing vocals - live shows)
TKIOF - The Kingdom is on Fire
PFTSD - Psalms for the Spiritually Dead