Hide episodes
Cast

Michael Chernus
John Wayne Gacy (8 episodes)

Gabriel Luna
Det. Rafael Tovar (8 episodes)

James Badge Dale
Chief of Detectives Joe Kozenczak (8 episodes)

Michael Angarano
Sam Amirante (8 episodes)

Chris Sullivan
Lead Prosecutor Bill Kunkle (8 episodes)

Marin Ireland
Elizabeth Piest (8 episodes)

Greg Bryk
Harold Piest (8 episodes)

Cricket Brown
Kerry Piest (6 episodes)

Ted Dykstra
Det. Allen Fanholm (5 episodes)

Thom Nyhuus
Kenneth Piest (4 episodes)

Jake Horowitz
David Cram (3 episodes)

Hamish Allan-Headley
Det. Michael Albrecht (3 episodes)

Nina Kiri
Mary Amirante (3 episodes)

Chloe Avakian
Patti Szyc (3 episodes)

Sprague Grayden
Bessie Stapleton (3 episodes)

Krista Bridges
Rosemarie Szyc (3 episodes)

Michael Esper
Bob Motta (3 episodes)

Augustus Prew
Jeffrey (3 episodes)

Etienne Kellici
Samuel Stapleton (2 episodes)

Mason Versaw
Robert Donnelly (2 episodes)

Alex Paxton-Beesley
Helen (2 episodes)

Kristine Nielsen
Marion Gacy (2 episodes)

Christian Bako
Marko Butkovich (2 episodes)

Jim Annan
Judge Louis Garippo (2 episodes)

Mallory Bechtel
Mary Jane (2 episodes)

Ryker Baloun
Robert Piest (2 episodes)

Finlay Wojtak-Hissong
Randy Reffett (1 episodes)

Andrew Johnston
Donald Voorhees Jr (1 episodes)

Max Mattern
Billy Carroll (1 episodes)

Lynne Griffin
Gladys (1 episodes)

Desmond Sivan
Fred Tovar (1 episodes)

Mitchell Court
Eldest Szyc Son (1 episodes)

Yona Epstein-Roth
Cliff (1 episodes)

Rolando Alvarez Giacoman
Janitor (1 episodes)

Megan Murphy
Lynn Meadows (1 episodes)

Mary Wiseman
Karen Gacy (1 episodes)

Dan Lett
Dr. Stein (1 episodes)

Brenda Bazinet
Eugenia Godzik (1 episodes)

Jessie Behan
Young Marion Gacy (1 episodes)

Kathryn Bellamy
Beth (1 episodes)

Quincy Tyler Bernstine
Dr. Healy (1 episodes)

Alec Dahmer
Rookie Cop (1 episodes)

Colton Ryan
Billy Kindred (1 episodes)

Nigel Shawn Williams
John Davis (1 episodes)

Ianne Fields Stewart
Sophia St. Laurent (1 episodes)

Ish Morris
Guard Jenkins (1 episodes)

Sam Wexler
Delivery Man 2 (1 episodes)

Gavin Lewis
Timothy McCoy (1 episodes)

Crede Cooper
John Butkovich (1 episodes)

Thomas Mitchell Barnet
Phil Torf (1 episodes)

Alexander Crowther
Detective Janus (1 episodes)

Christopher Jacot
Detective Everford (1 episodes)

Aidan Wojtak-Hissong
Randy Reffett (1 episodes)

Cameron Brodeur
Michael Rossi (1 episodes)

Brandon McEwan
Philip Paske (1 episodes)

Luke Humphrey
Terry Sullivan (1 episodes)

Aidan Gouveia
Greg Godzik (1 episodes)

Rayisa Kondracki
Geraldine (1 episodes)

Daniel Griffin
Charlie Reynolds (1 episodes)

Dwight Ireland
Press Conference Reporter (1 episodes)

E. Fegan DeCordova
Reporter (1 episodes)

Ella Rae Peck
Rose Perino (1 episodes)

R Austin Ball
Ron Dovenek (1 episodes)

Morgan Kelly
Fred Richman (1 episodes)

Dylan Taylor
CPD Officer O'Neal (1 episodes)

Lauren Collins
Genie Godzik (1 episodes)

Kylee Evans
Deanna Amirante (1 episodes)

Marcia Bennett
Delores Nieder (1 episodes)
Crew

Maggie Kiley
Director (2 episodes)

Bille Woodruff
Director (2 episodes)

Larysa Kondracki
Director (2 episodes)

Patrick Macmanus
Director (1 episodes)

Patrick Macmanus
Executive Producer (8 episodes)

Noah Oppenheim
Executive Producer (8 episodes)

Ahmadu Garba
Executive Producer (8 episodes)

Patrick Macmanus
Writer (1 episodes)
