Michael Feifer Director, Screenwriter, Producer, Film Editing Mason McNulty Bobby Actor, Executive Producer Brock Burnett Howard Actor Caia Coley Darlene Actor Mike Korich John Wayne Gacy Actor Ryker Baloun Kevin Actor Shelby Janes Gacy's Mother Actor Ashley Ray Keefe Julie Actor John Omohundro Jason Actor Gordon Hinchen Ozzie Actor Cindy McNulty Producer Candy Diez Executive Producer Cher Rue Executive Producer Diane Warlick Executive Producer Hank Baumert Jr. Cinematographer Robert Arzola Original Music Samuel Saldivar Production Design Marcelle Chamlee Costume Design