Brian Dennehy
John Wayne Gacy
Acting
Michael Riley
Joe 'Polock' Kozenczak
Acting
Margot Kidder
Rachel Grayson
Acting
Meg Foster
Linda Carlson
Acting
Martin Julien
Ted Koslo
Acting
Scott Hylands
Mike Paxton
Acting
John Boylan
Atkins
Acting
David Eisner
Williams
Acting
Tony De Santis
DeMarco
Acting
Mark Humphrey
King
Acting
Gary Reineke
Petrie
Acting
Tim Progosh
Morris
Acting
Danny Pawlick
Santori
Production
Bruce Ramsay
Bragg
Acting
Brenda Bazinet
Alice Pearson
Acting
Liliane Clune
Marcia Kozenczak
Acting
Toby Proctor
Michael Kozenczak
Acting
Christopher Marren
Billy
Acting
Gerry Quigley
Walden
Acting
Nicholas Pasco
Barton
Acting
Michael Copeman
Chief Cameron
Acting
James Kee
Hoskins
Writing
Brigette Lawson
Pam
Acting
Jay Brazeau
Jake Burns
Acting
Cynthia Preston
Cindy Beck
Acting
Andrew Gillies
Vincent Austin
Acting
Kurt Reis
Waldron
Acting
Judith Goodwin
Mrs. Gant
Acting
Shawn Lawrence
Mr. Gant
Acting
Jacqueline Graham
Lorna Gant
Acting
Nicholas Shields
Christopher Gant
Acting
Sarah Gibney
Lisa Kozenczak
Acting
Aviva Magner
Debbie Kozenczak
Acting
Maureen McRae
Mrs. Trask
Acting
Timm Zemanek
Mr. Trask
Acting
Maria Ricossa
Helen Gacy
Acting
Darryl Palmer
Sheriff
Acting
Peter Langley
Mr. Miklovich
Acting
John Friesen
Detective #1
Acting
Ray Paisley
Illinois K-9 Officer
Acting
Brett Halsey
Stan Wilder
Acting
Elliott Smith
Gas Station Attendant
Acting
David Gardner
Judge
Acting
David Bolt
Asst. Principal Burke
Acting
Thomas Hauff
Foreman Hendricks
Acting
David McAree
Older Worker
Directing
J. Winston Carroll
Sergeant on Wabash Ave.
Acting
Don Ritchie
Detective on Shakespeare Ave.
Acting
Rudy Webb
Cemetery Staffer
Acting
Robbie Rox
Cicero Bar Owner
Acting
Larry Reynolds
Finger Lake Proprietor
Acting
Veliko Pajkovic
Man at Bus Station
Acting
John Granik
Narrator (voice)
Acting
Luis Guzmán
Waiter (uncredited)
Acting
Peter Kerenyi
Pool Player (uncredited)
Acting