Générique complet
Gacy
Connor Storrie
John Wayne Gacy
MM
Madison McGovern
Gacy's Mom / Wife 2 (Carole Hoth)
David Kohn
Gacy's Dad
MW
Maddie Wechsler
Wife 1 (Marlynn Myers)
SC
Shane Cronin
Pastor / Victim 1 (Mark)
Josh Cronin
Victim 2
PG
Preston Glenn
Victim 3
GH
Gisele Hakim
Victim's Mother
JA
Justin Appell
Cop 1
NY
Nicole Youhanaie
Cop 2