Der Killerclown: John Wayne Gacy

Rod Blackhurst, Patrick Macmanus

Craig Bowley (Self - John Wayne Gacy Prison Correspondent), Tom Dart (Self - Sheriff of Cook County), Jason Moran (Self - Cook County Sheriff's Office), Terry Sullivan (Self - Fmr. Prosecutor, Cook County, IL), Steven Becker (Self - Attorney), Larry Potash (Self - News Reporter & Anchor), Alison True (Self - Journalist), Karen Kuzma (Self - John Wayne Gacy's Sister), Ray Cornell (Self - John Wayne Gacy's Former Friend), David Dutton (Self - Fmr. Prosecutor, Black Hawk County, IA)