Diretor/a
Joe Berlinger
DIRETOR/A
Elenco (na ordem dos créditos)
Sam Amirante
Self - Gacy's Criminal Attorney
Greg Bedoe
Self - Investigator, Cook County
Rafael Tovar
Self - Des Plaines P.D.
Mike Albrecht
Terry Sullivan
Self - Prosecutor, Cook County
Steve Nemmers
Self - Waterloo, Iowa Resident
Kim Byers
Self - Rob Piest's Friend
Ron Robinson
Lawrence Finder
Patti Vasquez
Self - Michael Bonnin's Sister
Dan Genty
Self - Evidence Technician, Cook County Sheriff's Office
Martha Fourt
Self - Gay Rights Activist
William Kunkle
Ray Cornell
Self - Former Inmate, Anamosa Reformatory
Bill Burger
Self - Fmr. President, Waterloo Jaycees
Kelly Green
Self - Gacy's Neighbor
Marty Zielinski
Self - Gacy's Former Employee
Robert Motta Sr.
Self - Gacy's Defense Attorney
Richard Rappaport
Self - Forensic Psychiatrist
Anthony Antonucci
Self - Former P.D.M. Employee
Ron Beaver
Self - Jury Foreman
Walter Jacobson
Self - Journalist
Jason Moran
Self - Lieutenant, Cook County Sheriff's Office