Michael Chernus John Wayne Gacy Actor Gabriel Luna Rafael Tovar Actor James Badge Dale Joe Kozenczak Actor Michael Angarano Sam Amirante Actor Chris Sullivan Bill Kunkle Actor Marin Ireland Elizabeth Piest Actor Patrick Macmanus Director, Executive Producer Noah Oppenheim Executive Producer Liz Cole Executive Producer Ashley Michel Hoban Executive Producer Ahmadu Garba Executive Producer Kelly Funke Executive Producer Gregory Locklear Writer Matthew White Writer