John Wayne Gacy

Michael Chernus

Det. Rafael Tovar

Gabriel Luna

Chief of Detectives Joe Kozenczak

James Badge Dale

Sam Amirante

Michael Angarano

Lead Prosecutor Bill Kunkle

Chris Sullivan

Elizabeth Piest

Marin Ireland

Harold Piest

Greg Bryk

Kerry Piest

Cricket Brown

Det. Allen Fanholm

Ted Dykstra

Kenneth Piest

Thom Nyhuus

David Cram

Jake Horowitz

Det. Michael Albrecht

Hamish Allan-Headley

Mary Amirante

Nina Kiri

Patti Szyc

Chloe Avakian

Bessie Stapleton

Sprague Grayden

Rosemarie Szyc

Krista Bridges

Bob Motta

Michael Esper

Jeffrey

Augustus Prew

Samuel Stapleton

Etienne Kellici

Robert Donnelly

Mason Versaw

Helen

Alex Paxton-Beesley

Carol Gacy

Eva Foote

Marion Gacy

Kristine Nielsen

Juanita

Lena Pepe

Marko Butkovich

Christian Bako

Judge Louis Garippo

Jim Annan

Mary Jane

Mallory Bechtel

Robert Piest

Ryker Baloun

Randy Reffett

Finlay Wojtak-Hissong

Donald Voorhees Sr.

Robert Meynell

Donald Voorhees Jr

Andrew Johnston

Teenage Gacy

Joshua Kilimnik

Billy Carroll

Max Mattern

Dale Landingin

Brayden Raqueño

Gladys

Lynne Griffin

Fred Tovar

Desmond Sivan

John 'Johnny' Szyc

Levi Shelton

Richard Szyc

Tom Barnett

Eldest Szyc Son

Mitchell Court

Cliff

Yona Epstein-Roth

Janitor

Rolando Alvarez Giacoman

Lynn Meadows

Megan Murphy

Karen Gacy

Mary Wiseman

Dr. Stein

Dan Lett

Marlynn Gacy

Samantha Adams

Eugenia Godzik

Brenda Bazinet

Young Marion Gacy

Jessie Behan

Beth

Kathryn Bellamy

Dr. Healy

Quincy Tyler Bernstine

Rookie Cop

Alec Dahmer

Billy Kindred

Colton Ryan

John Davis

Nigel Shawn Williams

Sophia St. Laurent

Ianne Fields Stewart

Guard Jenkins

Ish Morris

Young Woman 1

Lizzie Moffatt

Young Male

Aidan Pinsler

Hot Girl

Amanda Cheung

Delivery Man 1

Matthew Chiarelli

Waitress

Mira Skye Korngold

Delivery Man 2

Sam Wexler

Timothy McCoy

Gavin Lewis

John Butkovich

Crede Cooper

Phil Torf

Thomas Mitchell Barnet

Detective Janus

Alexander Crowther

Detective Everford

Christopher Jacot

Jerry Latherow

Jarrod Vanvolkenburg

Randy Reffett

Aidan Wojtak-Hissong

Michael Rossi

Cameron Brodeur

Philip Paske

Brandon McEwan

Terry Sullivan

Luke Humphrey

Greg Godzik

Aidan Gouveia

Geraldine

Rayisa Kondracki

Charlie Reynolds

Daniel Griffin

Press Conference Reporter

Dwight Ireland

Reporter

E. Fegan DeCordova

Reporter

Karrie Kwong

Rose Perino

Ella Rae Peck

Ron Dovenek

R Austin Ball

Fred Richman

Morgan Kelly

CPD Officer O'Neal

Dylan Taylor

Genie Godzik

Lauren Collins

Deanna Amirante

Kylee Evans

Delores Nieder

Marcia Bennett

Danny Jockell

Eric Wiegand