It Never Ends

Terry Sullivan

Self - Fmr. Prosecutor, Cook County, IL

John Wayne Gacy

Archive footage

Craig Bowley

Self - John Gacy Prison Correspondent

Karen Kuzma

Self - John Gacy's Sister

David Dutton

Self - Fmr. Prosecutor, Black Hawk County, IA

Ray Cornell

Self - John Gacy's Former Friend

Karen Conti

Self - Gacy's Death Row Attorney

Larry Potash

Self - News Reporter & Anchor

Alison True

Self - Journalist

William Dorsch

Self - Ret. Chicago PD Homicide Detective

Thomas J. Dart

Self - Sheriff of Cook County

Jason Moran

Self - Cook County Sheriff's Office

Steven W. Becker

Self - Attorney

Sherry Marino

Self - Mother of Michael Marino (archive footage)