John Wayne Gacy: A Monster in Disguise

John Wayne Gacy

Self (archive footage)

Barry Boschelli

Self - Childhood Friend

Ray Cornell

Self - Fellow Inmate

David Cram

Self - Former Gacy Employee

David Hachmeister

Self - Police Investigator

Karen Kuzma

Self - Sister

Terry Sullivan

Self - Gacy Biographer

Helen Morrison

Self - Psychiatrist