• 
  Eric Till

  regizor

• 
  Luis Guzmán

  Chelner
• 
  Brian Dennehy

  John Wayne Gacy
• 
  Gerry Quigley

  Walden
• 
  Gary Reineke

  Delta Squad Detective Leonard 'Lenny' Petrie
• 
  J. Winston Carroll

  Sergeant (Wabash Ave.)
• 
  Andrew Gillies

  Vincent Austin
• 
  Anthony DeSantis

  Delta Squad Detective Craig DeMarco

• 
  Meg Foster

  City Attorney Linda Carlson
• 
  Mark Humphrey

  Delta Squad Detective King
• 
  David Eisner

  Detective Terry Williams
• 
  Kurt Reis

  Waterloo Police Chief Waldron
• 
  Rudy Webb

  Cemetery Staff Member
• 
  Maria Ricossa

  Helen Gacy
• 
  Larry Reynolds

  Finger Lake Proprietor

• 
  Jay Brazeau

  Jake Burns
• 
  Bruce Ramsay

  Forensic Officer Edward 'Ed' Bragg
• 
  Michael Riley

  Lieutenant Joseph 'Joe/Polock' Kozenczak
• 
  Cynthia Preston

  Cindy Beck
• 
  Tim Progosh

  Delta Squad Detective Jack Morris
• 
  John Boylan

  Detective Gary Atkins
• 
  Scott Hylands

  Delta Squad Sergeant Mike Paxton
• 
  Shawn Lawrence

  Mr. Gant
• 
  Jacqueline Samuda
• 
  James Kee

  A.D.A. Don Hoskins
• 
  Margot Kidder

  Rachel Grayson
• 
  Brenda Bazinet

  Alice Pearson
• 
  Nicholas Pasco

  Detective Gil Barton
• 
  Tony De Santis

  Delta Squad Detective Craig DeMarco
• 
  Brett Halsey

  Stan Wilder
• 
  Toby Proctor

  Michael Kozenczak

• 
  Rene Ohashi

  imagine
• 
  Ralph Brunjes

  montaj
• 
  Lance H. Robbins

  producător
• 
  Lloyd Adams

  cascador
• 
  Marco Bianco

  cascador
• 
  Matt Birman

  cascador