Ηθοποιοί επεισοδίου
Μάικλ ΤσέρνουςJohn Wayne Gacy
Gabriel LunaDet. Rafael Tovar
James Badge DaleChief of Detectives Joe Kozenczak
Michael AngaranoSam Amirante
Chris SullivanLead Prosecutor Bill Kunkle
Μαρίν ΆιρλαντElizabeth Piest
Greg BrykHarold Piest
Hamish Allan-HeadleyDet. Michael Albrecht
Ted DykstraDet. Allen Fanholm
Cricket BrownKerry Piest
Alex Paxton-BeesleyHelen
★
Levi SheltonJohn 'Johnny' Szyc
★
Tom BarnettRichard Szyc
Chloe AvakianPatti Szyc