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William Forsythe as John Wayne Gacy |
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Jesse Moss as Jason Moss |
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Emma Lahana as Alyssa |
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Cole Heppell as Alex Moss |
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Belinda Metz as Valerie Moss |
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Michael Ryan as Frank Moss |
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Eric Keenleyside as Stan |
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Daryl Shuttleworth as Guard Thompson |
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Patrick Gilmore as Glen Phillips |
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Andrew Airlie as Professor Harris |
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Michael Kopsa as FBI Agent |
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Jeffrey Bowyer-Chapman as Male Hustler |
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Hunter Elliott as Butcher Shop Victim |
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Michaela Mann as Prostitute |
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Dee Jay Jackson as Desk Guard |
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Libby Osler as Counter Girl |
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Brett Dier as Marcus |
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James Ralph as Armed Guard |
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Jaren Brandt Bartlett as Mike |
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Lynn Colliar as TV News Reporter |
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Richard Harmon as Victim |
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Andrea Brooks as Stalked Girl |
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Anthony Shim as Paul |
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Karissa Tynes as Amy |
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Josh Goring as Marcus' Friend (uncredited) |
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Kai Kennedy as Bobby (uncredited) |
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John Andrew Vaas as Undercover Detective (uncredited) |
| Directing | Svetozar Ristovski | Director |
| Writing | Kellie Madison | Screenplay |
| Writing | Jason Moss | Novel |
| Writing | Jeffrey Kottler | Novel |
| Production | Gordon Yang | Producer |
| Editing | Scott Belyea | Editor |
| Production | Candice Elzinga | Casting |
| Production | Ferne Cassel | Casting |
| Art | James Willcock | Production Design |
| Art | Jeff Munt | Set Decoration |
| Art | Michelle Pitney | Set Decoration |
| Costume & Make-Up | Katie Quinn | Costume Design |
| Directing | Carol Green-Lundy | Script Supervisor |
| Writing | Clark Peterson | Story |
| Production | Josée Bernard | Co-Executive Producer |
| Production | Tom Berry | Executive Producer |
| Production | Jeffery Scott Lando | Associate Producer |
| Production | Gilles LaPlante | Line Producer |
| Production | Kellie Madison | Executive Producer |
| Production | Clark Peterson | Executive Producer |
| Costume & Make-Up | Lyne Denomme | Assistant Hairstylist |
| Costume & Make-Up | Lyne Denomme | Assistant Makeup Artist |
| Costume & Make-Up | Jennifer Kipps | Key Makeup Artist |
| Costume & Make-Up | Jennifer Kipps | Key Hair Stylist |
| Crew | Scott Belyea | Post-Production Manager |
| Production | Gilles LaPlante | Unit Production Manager |
| Directing | Michele E. Dutka | First Assistant Director |
| Directing | Bryant Marshall | Second Assistant Director |
| Directing | Brett McCord | Third Assistant Director |
| Art | Keith Bakker | Set Dresser |
| Costume & Make-Up | Behjat Benham | On Set Dresser |
| Art | Amber Boorman | Lead Set Dresser |
| Camera | Larry Lynn | Director of Photography |
| Sound | Terry Frewer | Original Music Composer |
