Brian Dennehy
John Wayne Gacy
Michael Riley
Joe 'Polock' Kozenczak
Margot Kidder
Rachel Grayson
Brenda Bazinet
Alice Pearson
Liliane Clune
Marcia Kozenczak
Toby Proctor
Michael Kozenczak
Michael Copeman
Chief Cameron
Cynthia Preston
Cindy Beck
Andrew Gillies
Vincent Austin
Jacqueline Graham
Lorna Gant
Nicholas Shields
Christopher Gant
Sarah Gibney
Lisa Kozenczak
Aviva Magner
Debbie Kozenczak
Peter Langley
Mr. Miklovich
Ray Paisley
Illinois K-9 Officer
Elliott Smith
Gas Station Attendant
David Bolt
Asst. Principal Burke
Thomas Hauff
Foreman Hendricks
J. Winston Carroll
Sergeant on Wabash Ave.
Don Ritchie
Detective on Shakespeare Ave.
Rudy Webb
Cemetery Staffer
Robbie Rox
Cicero Bar Owner
Larry Reynolds
Finger Lake Proprietor
Veliko Pajkovic
Man at Bus Station
John Granik
Narrator (voice)
Luis Guzmán
Waiter (uncredited)
Peter Kerenyi
Pool Player (uncredited)