Dear Mr. Gacy
Voltar
William ForsytheJohn Wayne Gacy
Jesse MossJason Moss
Emma LahanaAlyssa- Cole HeppellAlex Moss
Belinda MetzValerie Moss
Michael RyanFrank Moss
Eric KeenleysideStan
Daryl ShuttleworthGuard Thompson
Patrick GilmoreGlen Phillips
Andrew AirlieProfessor Harris
Michael KopsaFBI Agent
Jeffrey Bowyer-ChapmanMale Hustler- Hunter ElliottButcher Shop Victim
Michaela MannProstitute
Dee Jay JacksonDesk Guard- Libby OslerCounter Girl
Brett DierMarcus
James RalphArmed Guard
Jaren Brandt BartlettMike- Lynn ColliarTV News Reporter
Richard HarmonVictim
Andrea BrooksStalked Girl
Anthony ShimPaul
Karissa TynesAmy- Josh GoringMarcus' Friend (sem créditos)
- Kai KennedyBobby (sem créditos)
- John Andrew VaasUndercover Detective (sem créditos)